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Finding the Fourth Proportional to 372,788.87, 514,463.20 and 211,658.91

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Solution

The fourth proportional to 372,788.87, 514,463.20 and 211,658.91 is: 292,097.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,788.87 : 514,463.20 = 211,658.91 : x
  2. Step 2: Convert to fraction form
    372,788.87/514,463.20 = 211,658.91/x
  3. Step 3: Cross multiply
    372,788.87x = 514,463.20 × 211,658.91
  4. Step 4: Simplify right side
    372,788.87x = 108,890,717,688.73
  5. Step 5: Solve for x
    x = 108,890,717,688.73/372,788.87
  6. Step 6: Final answer
    x = 292,097.56

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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.