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Finding the Third Proportional to 263.38 and 395.13

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Solution

The third proportional to 263.38 and 395.13 is: 592.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.38 : 395.13 = 395.13 : x
  2. Step 2: Convert to fraction form
    263.38/395.13 = 395.13/x
  3. Step 3: Cross multiply
    263.38x = 395.13 × 395.13
  4. Step 4: Simplify right side
    263.38x = 156,123.77
  5. Step 5: Solve for x
    x = 156,123.77/263.38
  6. Step 6: Final answer
    x = 592.78

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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.