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Finding the Third Proportional to 229.78 and 532.69

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Solution

The third proportional to 229.78 and 532.69 is: 1,234.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    229.78 : 532.69 = 532.69 : x
  2. Step 2: Convert to fraction form
    229.78/532.69 = 532.69/x
  3. Step 3: Cross multiply
    229.78x = 532.69 × 532.69
  4. Step 4: Simplify right side
    229.78x = 283,755.97
  5. Step 5: Solve for x
    x = 283,755.97/229.78
  6. Step 6: Final answer
    x = 1,234.90

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.