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Finding the Third Proportional to 460.50 and 474

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Solution

The third proportional to 460.50 and 474 is: 487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.50 : 474 = 474 : x
  2. Step 2: Convert to fraction form
    460.50/474 = 474/x
  3. Step 3: Cross multiply
    460.50x = 474 × 474
  4. Step 4: Simplify right side
    460.50x = 224,676
  5. Step 5: Solve for x
    x = 224,676/460.50
  6. Step 6: Final answer
    x = 487.90

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Why These Related Problems?

These problems maintain the same ratio (1.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.