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Finding the Third Proportional to 494 and 762

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Solution

The third proportional to 494 and 762 is: 1,175.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    494 : 762 = 762 : x
  2. Step 2: Convert to fraction form
    494/762 = 762/x
  3. Step 3: Cross multiply
    494x = 762 × 762
  4. Step 4: Simplify right side
    494x = 580,644
  5. Step 5: Solve for x
    x = 580,644/494
  6. Step 6: Final answer
    x = 1,175.39

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.