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Finding the Third Proportional to 496.13 and 864.38

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Solution

The third proportional to 496.13 and 864.38 is: 1,505.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.13 : 864.38 = 864.38 : x
  2. Step 2: Convert to fraction form
    496.13/864.38 = 864.38/x
  3. Step 3: Cross multiply
    496.13x = 864.38 × 864.38
  4. Step 4: Simplify right side
    496.13x = 747,144.14
  5. Step 5: Solve for x
    x = 747,144.14/496.13
  6. Step 6: Final answer
    x = 1,505.96

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Why These Related Problems?

These problems maintain the same ratio (1.74) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.