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Finding the Fourth Proportional to 462,691.11, 638,257.28 and 269,077.62

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Solution

The fourth proportional to 462,691.11, 638,257.28 and 269,077.62 is: 371,177.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,691.11 : 638,257.28 = 269,077.62 : x
  2. Step 2: Convert to fraction form
    462,691.11/638,257.28 = 269,077.62/x
  3. Step 3: Cross multiply
    462,691.11x = 638,257.28 × 269,077.62
  4. Step 4: Simplify right side
    462,691.11x = 171,740,748,504.69
  5. Step 5: Solve for x
    x = 171,740,748,504.69/462,691.11
  6. Step 6: Final answer
    x = 371,177.97

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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.