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Finding the Third Proportional to 182,711 and 398,626

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Solution

The third proportional to 182,711 and 398,626 is: 869,694.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,711 : 398,626 = 398,626 : x
  2. Step 2: Convert to fraction form
    182,711/398,626 = 398,626/x
  3. Step 3: Cross multiply
    182,711x = 398,626 × 398,626
  4. Step 4: Simplify right side
    182,711x = 158,902,687,876
  5. Step 5: Solve for x
    x = 158,902,687,876/182,711
  6. Step 6: Final answer
    x = 869,694.15

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.