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Finding the Fourth Proportional to 462.52, 638.08 and 265.92

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Solution

The fourth proportional to 462.52, 638.08 and 265.92 is: 366.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.52 : 638.08 = 265.92 : x
  2. Step 2: Convert to fraction form
    462.52/638.08 = 265.92/x
  3. Step 3: Cross multiply
    462.52x = 638.08 × 265.92
  4. Step 4: Simplify right side
    462.52x = 169,678.23
  5. Step 5: Solve for x
    x = 169,678.23/462.52
  6. Step 6: Final answer
    x = 366.86

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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.