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Finding the Third Proportional to 322,132 and 699,624

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Solution

The third proportional to 322,132 and 699,624 is: 1,519,481.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,132 : 699,624 = 699,624 : x
  2. Step 2: Convert to fraction form
    322,132/699,624 = 699,624/x
  3. Step 3: Cross multiply
    322,132x = 699,624 × 699,624
  4. Step 4: Simplify right side
    322,132x = 489,473,741,376
  5. Step 5: Solve for x
    x = 489,473,741,376/322,132
  6. Step 6: Final answer
    x = 1,519,481.89

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.