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Finding the Third Proportional to 644,822 and 996,876

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Solution

The third proportional to 644,822 and 996,876 is: 1,541,141.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,822 : 996,876 = 996,876 : x
  2. Step 2: Convert to fraction form
    644,822/996,876 = 996,876/x
  3. Step 3: Cross multiply
    644,822x = 996,876 × 996,876
  4. Step 4: Simplify right side
    644,822x = 993,761,759,376
  5. Step 5: Solve for x
    x = 993,761,759,376/644,822
  6. Step 6: Final answer
    x = 1,541,141.21

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.