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Finding the Fourth Proportional to 620,792,678.07, 929,676,340.42 and 410,575,294.73

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Solution

The fourth proportional to 620,792,678.07, 929,676,340.42 and 410,575,294.73 is: 614,862,499.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,792,678.07 : 929,676,340.42 = 410,575,294.73 : x
  2. Step 2: Convert to fraction form
    620,792,678.07/929,676,340.42 = 410,575,294.73/x
  3. Step 3: Cross multiply
    620,792,678.07x = 929,676,340.42 × 410,575,294.73
  4. Step 4: Simplify right side
    620,792,678.07x = 381,702,137,472,747,072
  5. Step 5: Solve for x
    x = 381,702,137,472,747,072/620,792,678.07
  6. Step 6: Final answer
    x = 614,862,499.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.