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Finding the Fourth Proportional to 539,023,057.65, 743,854,061.48 and 291,504,411.90

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Solution

The fourth proportional to 539,023,057.65, 743,854,061.48 and 291,504,411.90 is: 402,277,300.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,023,057.65 : 743,854,061.48 = 291,504,411.90 : x
  2. Step 2: Convert to fraction form
    539,023,057.65/743,854,061.48 = 291,504,411.90/x
  3. Step 3: Cross multiply
    539,023,057.65x = 743,854,061.48 × 291,504,411.90
  4. Step 4: Simplify right side
    539,023,057.65x = 216,836,740,729,696,320
  5. Step 5: Solve for x
    x = 216,836,740,729,696,320/539,023,057.65
  6. Step 6: Final answer
    x = 402,277,300.85

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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.