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Finding the Fourth Proportional to 540,891.52, 811,129.68 and 185,839.36

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Solution

The fourth proportional to 540,891.52, 811,129.68 and 185,839.36 is: 278,687.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,891.52 : 811,129.68 = 185,839.36 : x
  2. Step 2: Convert to fraction form
    540,891.52/811,129.68 = 185,839.36/x
  3. Step 3: Cross multiply
    540,891.52x = 811,129.68 × 185,839.36
  4. Step 4: Simplify right side
    540,891.52x = 150,739,820,608.21
  5. Step 5: Solve for x
    x = 150,739,820,608.21/540,891.52
  6. Step 6: Final answer
    x = 278,687.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.