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Finding the Third Proportional to 267,455.67 and 391,581.84

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Solution

The third proportional to 267,455.67 and 391,581.84 is: 573,314.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,455.67 : 391,581.84 = 391,581.84 : x
  2. Step 2: Convert to fraction form
    267,455.67/391,581.84 = 391,581.84/x
  3. Step 3: Cross multiply
    267,455.67x = 391,581.84 × 391,581.84
  4. Step 4: Simplify right side
    267,455.67x = 153,336,340,354.65
  5. Step 5: Solve for x
    x = 153,336,340,354.65/267,455.67
  6. Step 6: Final answer
    x = 573,314.97

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.