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Finding the Fourth Proportional to 614,653,486.92, 921,981,805.02 and 251,147,842.92

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Solution

The fourth proportional to 614,653,486.92, 921,981,805.02 and 251,147,842.92 is: 376,722,407.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,653,486.92 : 921,981,805.02 = 251,147,842.92 : x
  2. Step 2: Convert to fraction form
    614,653,486.92/921,981,805.02 = 251,147,842.92/x
  3. Step 3: Cross multiply
    614,653,486.92x = 921,981,805.02 × 251,147,842.92
  4. Step 4: Simplify right side
    614,653,486.92x = 231,553,741,542,261,024
  5. Step 5: Solve for x
    x = 231,553,741,542,261,024/614,653,486.92
  6. Step 6: Final answer
    x = 376,722,407.78

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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.