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Finding the Fourth Proportional to 451,382.76, 622,761.78 and 267,635.88

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Solution

The fourth proportional to 451,382.76, 622,761.78 and 267,635.88 is: 369,250.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,382.76 : 622,761.78 = 267,635.88 : x
  2. Step 2: Convert to fraction form
    451,382.76/622,761.78 = 267,635.88/x
  3. Step 3: Cross multiply
    451,382.76x = 622,761.78 × 267,635.88
  4. Step 4: Simplify right side
    451,382.76x = 166,673,397,020.67
  5. Step 5: Solve for x
    x = 166,673,397,020.67/451,382.76
  6. Step 6: Final answer
    x = 369,250.69

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1.5x scale

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.