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Finding the Third Proportional to 664,749 and 996,872

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Solution

The third proportional to 664,749 and 996,872 is: 1,494,930.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,749 : 996,872 = 996,872 : x
  2. Step 2: Convert to fraction form
    664,749/996,872 = 996,872/x
  3. Step 3: Cross multiply
    664,749x = 996,872 × 996,872
  4. Step 4: Simplify right side
    664,749x = 993,753,784,384
  5. Step 5: Solve for x
    x = 993,753,784,384/664,749
  6. Step 6: Final answer
    x = 1,494,930.85

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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.