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Finding the Third Proportional to 422,718 and 996,860

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Solution

The third proportional to 422,718 and 996,860 is: 2,350,810.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,718 : 996,860 = 996,860 : x
  2. Step 2: Convert to fraction form
    422,718/996,860 = 996,860/x
  3. Step 3: Cross multiply
    422,718x = 996,860 × 996,860
  4. Step 4: Simplify right side
    422,718x = 993,729,859,600
  5. Step 5: Solve for x
    x = 993,729,859,600/422,718
  6. Step 6: Final answer
    x = 2,350,810.37

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.