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Finding the Third Proportional to 187,753 and 391,045

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Solution

The third proportional to 187,753 and 391,045 is: 814,454.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,753 : 391,045 = 391,045 : x
  2. Step 2: Convert to fraction form
    187,753/391,045 = 391,045/x
  3. Step 3: Cross multiply
    187,753x = 391,045 × 391,045
  4. Step 4: Simplify right side
    187,753x = 152,916,192,025
  5. Step 5: Solve for x
    x = 152,916,192,025/187,753
  6. Step 6: Final answer
    x = 814,454.05

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.