Well, look at it this way:

This means there are 3 to the power 19 different ways to combine these numbers... That's a lot of possible combinations to try, but it can be done I suppose... You'd probably want to write a recursive algorithm to try all these permutations, and see if the rounded total matches the number you specified...

Update: Possible solution code posted below

In reply to Re^3: Reverse engineering a formula... by Gilimanjaro
in thread Reverse engineering a formula... by devnul

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