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Finding the Third Proportional to 232.03 and 385.17

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Solution

The third proportional to 232.03 and 385.17 is: 639.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.03 : 385.17 = 385.17 : x
  2. Step 2: Convert to fraction form
    232.03/385.17 = 385.17/x
  3. Step 3: Cross multiply
    232.03x = 385.17 × 385.17
  4. Step 4: Simplify right side
    232.03x = 148,357.37
  5. Step 5: Solve for x
    x = 148,357.37/232.03
  6. Step 6: Final answer
    x = 639.39

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.