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Finding the Fourth Proportional to 372,891.56, 514,591.28 and 203,126.92

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Solution

The fourth proportional to 372,891.56, 514,591.28 and 203,126.92 is: 280,315.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,891.56 : 514,591.28 = 203,126.92 : x
  2. Step 2: Convert to fraction form
    372,891.56/514,591.28 = 203,126.92/x
  3. Step 3: Cross multiply
    372,891.56x = 514,591.28 × 203,126.92
  4. Step 4: Simplify right side
    372,891.56x = 104,527,341,765.26
  5. Step 5: Solve for x
    x = 104,527,341,765.26/372,891.56
  6. Step 6: Final answer
    x = 280,315.65

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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.