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Finding the Third Proportional to 337,918 and 472,432

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Solution

The third proportional to 337,918 and 472,432 is: 660,491.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,918 : 472,432 = 472,432 : x
  2. Step 2: Convert to fraction form
    337,918/472,432 = 472,432/x
  3. Step 3: Cross multiply
    337,918x = 472,432 × 472,432
  4. Step 4: Simplify right side
    337,918x = 223,191,994,624
  5. Step 5: Solve for x
    x = 223,191,994,624/337,918
  6. Step 6: Final answer
    x = 660,491.58

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.