Explicación paso a paso:
Se hace por regla de tres:
A.
100%---1238
15%------x
x=15%×1238/100%= 185.7
B.
100%---1530
38%-----x
x=38%×1530/100%= 581.4
C.
100%---4530.8
20%------x
x=20%×4530.8/100%= 906.16
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Explicación paso a paso:
Se hace por regla de tres:
A.
100%---1238
15%------x
x=15%×1238/100%= 185.7
B.
100%---1530
38%-----x
x=38%×1530/100%= 581.4
C.
100%---4530.8
20%------x
x=20%×4530.8/100%= 906.16