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Finding the Fourth Proportional to 451,091.62, 622,496.91 and 247,132.61

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Solution

The fourth proportional to 451,091.62, 622,496.91 and 247,132.61 is: 341,037.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,091.62 : 622,496.91 = 247,132.61 : x
  2. Step 2: Convert to fraction form
    451,091.62/622,496.91 = 247,132.61/x
  3. Step 3: Cross multiply
    451,091.62x = 622,496.91 × 247,132.61
  4. Step 4: Simplify right side
    451,091.62x = 153,839,286,085.24
  5. Step 5: Solve for x
    x = 153,839,286,085.24/451,091.62
  6. Step 6: Final answer
    x = 341,037.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.