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Finding the Third Proportional to 371.75 and 658.75

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Solution

The third proportional to 371.75 and 658.75 is: 1,167.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.75 : 658.75 = 658.75 : x
  2. Step 2: Convert to fraction form
    371.75/658.75 = 658.75/x
  3. Step 3: Cross multiply
    371.75x = 658.75 × 658.75
  4. Step 4: Simplify right side
    371.75x = 433,951.56
  5. Step 5: Solve for x
    x = 433,951.56/371.75
  6. Step 6: Final answer
    x = 1,167.32

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.