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Finding the Fourth Proportional to 704,847.61, 972,690.17 and 382,557.71

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Solution

The fourth proportional to 704,847.61, 972,690.17 and 382,557.71 is: 527,929.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,847.61 : 972,690.17 = 382,557.71 : x
  2. Step 2: Convert to fraction form
    704,847.61/972,690.17 = 382,557.71/x
  3. Step 3: Cross multiply
    704,847.61x = 972,690.17 × 382,557.71
  4. Step 4: Simplify right side
    704,847.61x = 372,110,123,974.71
  5. Step 5: Solve for x
    x = 372,110,123,974.71/704,847.61
  6. Step 6: Final answer
    x = 527,929.89

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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.