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Finding the Third Proportional to 267,691.50 and 414,699.75

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Solution

The third proportional to 267,691.50 and 414,699.75 is: 642,440.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,691.50 : 414,699.75 = 414,699.75 : x
  2. Step 2: Convert to fraction form
    267,691.50/414,699.75 = 414,699.75/x
  3. Step 3: Cross multiply
    267,691.50x = 414,699.75 × 414,699.75
  4. Step 4: Simplify right side
    267,691.50x = 171,975,882,650.06
  5. Step 5: Solve for x
    x = 171,975,882,650.06/267,691.50
  6. Step 6: Final answer
    x = 642,440.58

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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.