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Finding the Third Proportional to 644,832 and 996,891

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Solution

The third proportional to 644,832 and 996,891 is: 1,541,163.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,832 : 996,891 = 996,891 : x
  2. Step 2: Convert to fraction form
    644,832/996,891 = 996,891/x
  3. Step 3: Cross multiply
    644,832x = 996,891 × 996,891
  4. Step 4: Simplify right side
    644,832x = 993,791,665,881
  5. Step 5: Solve for x
    x = 993,791,665,881/644,832
  6. Step 6: Final answer
    x = 1,541,163.69

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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.