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Finding the Third Proportional to 253,472 and 379,449

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Solution

The third proportional to 253,472 and 379,449 is: 568,037.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,472 : 379,449 = 379,449 : x
  2. Step 2: Convert to fraction form
    253,472/379,449 = 379,449/x
  3. Step 3: Cross multiply
    253,472x = 379,449 × 379,449
  4. Step 4: Simplify right side
    253,472x = 143,981,543,601
  5. Step 5: Solve for x
    x = 143,981,543,601/253,472
  6. Step 6: Final answer
    x = 568,037.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.