$648 Increased By 2/3 Of Itself Equals What Amount?


Answer:
If it increased with 2/3, it means that the new advantage becomes:

oldvalue + 2/3 of oldvalue -> 648 + 2/3 of 648

So we now substitute oldvalue with 648:
2/3 of 648 = 648 / 3 * 2 = 432 (or purely do 2/3 * 648)

the new amount is:
1080 dollars

You could also say:
The value = 1 * oldvalue + 2/3 * oldvalue = 5/3 * oldvalue
5/3 * 648 = 1080.

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