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Finding the Third Proportional to 367,067 and 516,921

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Solution

The third proportional to 367,067 and 516,921 is: 727,952.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,067 : 516,921 = 516,921 : x
  2. Step 2: Convert to fraction form
    367,067/516,921 = 516,921/x
  3. Step 3: Cross multiply
    367,067x = 516,921 × 516,921
  4. Step 4: Simplify right side
    367,067x = 267,207,320,241
  5. Step 5: Solve for x
    x = 267,207,320,241/367,067
  6. Step 6: Final answer
    x = 727,952.45

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.