Umm...no. The americans stopped building new formations in 1943.
So no...there wasn't going to be any increasing ratio of americans to allies..unless the allies were dying off faster then the americans in combat.
The US decided to keep their divisions as fully manned as possible instead of creating new one. Germany on the other hand let current divisions get to as low as 20% of their allotted levels and then just created new divisions even without the troops to man them. So please compare apples to apples.