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Finding the Third Proportional to 422,272.13 and 996,406.31

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Solution

The third proportional to 422,272.13 and 996,406.31 is: 2,351,151.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,272.13 : 996,406.31 = 996,406.31 : x
  2. Step 2: Convert to fraction form
    422,272.13/996,406.31 = 996,406.31/x
  3. Step 3: Cross multiply
    422,272.13x = 996,406.31 × 996,406.31
  4. Step 4: Simplify right side
    422,272.13x = 992,825,539,589.85
  5. Step 5: Solve for x
    x = 992,825,539,589.85/422,272.13
  6. Step 6: Final answer
    x = 2,351,151.03

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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.