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Finding the Third Proportional to 442,340 and 667,175

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Solution

The third proportional to 442,340 and 667,175 is: 1,006,290.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,340 : 667,175 = 667,175 : x
  2. Step 2: Convert to fraction form
    442,340/667,175 = 667,175/x
  3. Step 3: Cross multiply
    442,340x = 667,175 × 667,175
  4. Step 4: Simplify right side
    442,340x = 445,122,480,625
  5. Step 5: Solve for x
    x = 445,122,480,625/442,340
  6. Step 6: Final answer
    x = 1,006,290.37

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.