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Finding the Fourth Proportional to 539,472,522.92, 744,472,072.60 and 291,953,877.16

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Solution

The fourth proportional to 539,472,522.92, 744,472,072.60 and 291,953,877.16 is: 402,896,345.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,472,522.92 : 744,472,072.60 = 291,953,877.16 : x
  2. Step 2: Convert to fraction form
    539,472,522.92/744,472,072.60 = 291,953,877.16/x
  3. Step 3: Cross multiply
    539,472,522.92x = 744,472,072.60 × 291,953,877.16
  4. Step 4: Simplify right side
    539,472,522.92x = 217,351,508,032,911,040
  5. Step 5: Solve for x
    x = 217,351,508,032,911,040/539,472,522.92
  6. Step 6: Final answer
    x = 402,896,345.59

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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.