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Finding the Third Proportional to 240,627 and 336,432

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Solution

The third proportional to 240,627 and 336,432 is: 470,381.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,627 : 336,432 = 336,432 : x
  2. Step 2: Convert to fraction form
    240,627/336,432 = 336,432/x
  3. Step 3: Cross multiply
    240,627x = 336,432 × 336,432
  4. Step 4: Simplify right side
    240,627x = 113,186,490,624
  5. Step 5: Solve for x
    x = 113,186,490,624/240,627
  6. Step 6: Final answer
    x = 470,381.51

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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.