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Finding the Third Proportional to 417,264 and 625,611

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Solution

The third proportional to 417,264 and 625,611 is: 937,989.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,264 : 625,611 = 625,611 : x
  2. Step 2: Convert to fraction form
    417,264/625,611 = 625,611/x
  3. Step 3: Cross multiply
    417,264x = 625,611 × 625,611
  4. Step 4: Simplify right side
    417,264x = 391,389,123,321
  5. Step 5: Solve for x
    x = 391,389,123,321/417,264
  6. Step 6: Final answer
    x = 937,989.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.