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Finding the Third Proportional to 267,624 and 415,027

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Solution

The third proportional to 267,624 and 415,027 is: 643,617.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,624 : 415,027 = 415,027 : x
  2. Step 2: Convert to fraction form
    267,624/415,027 = 415,027/x
  3. Step 3: Cross multiply
    267,624x = 415,027 × 415,027
  4. Step 4: Simplify right side
    267,624x = 172,247,410,729
  5. Step 5: Solve for x
    x = 172,247,410,729/267,624
  6. Step 6: Final answer
    x = 643,617.20

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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.