Diluting Prime, Some Math Help Needed Please.

Heres the story, I have these two dosing pumps that came on a couple of bottles of a concentrated Gatorade type of drink.
I would like to use these clean, empty bottles/pumps to dose prime into my tank, since it would be nice and simple, one pump, and put it away.

I have determined that each pump squirts out roughly 40-45ml per pump (roughly 1 1/4Oz.)

Prime, no matter the bottle size requires 5ml per 50 gallons(1ml per 10 gallons) correct?

So how do I figure out how much I need to dilute the Prime, in order to make it 45ml per 50 gallons? (4.5ml per 10 gallons??)

I would actually like to make it just slighty stronger than its required dose.... you know just to be on the safe side

well, I appreciate the helpyou have offered me, cause god knows, I would have screwed that up somehow.

HOWEVER, I think I'm going to use these bottles to store ammonia.

I have a 500g bottle of ammonium chloride on its way to me, for cycling my tank, and I think it might be better if I mix up a batch of soloution, instead of using powder directly in the tank.

The math on that is a little more complex I think.

calibrated eye dropper for what?