Finding the Fourth Proportional to 1,115,578.79, 1,539,817.97 and 656,959.41
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Solution
The fourth proportional to 1,115,578.79, 1,539,817.97 and 656,959.41 is: 906,791.98
Step by Step Solution
- Step 1: Write the proportion equation
1,115,578.79 : 1,539,817.97 = 656,959.41 : x - Step 2: Convert to fraction form
1,115,578.79/1,539,817.97 = 656,959.41/x - Step 3: Cross multiply
1,115,578.79x = 1,539,817.97 × 656,959.41 - Step 4: Simplify right side
1,115,578.79x = 1,011,597,901,793.80 - Step 5: Solve for x
x = 1,011,597,901,793.80/1,115,578.79 - Step 6: Final answer
x = 906,791.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.