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Finding the Fourth Proportional to 539,791.32, 744,908.04 and 298,073.88

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Solution

The fourth proportional to 539,791.32, 744,908.04 and 298,073.88 is: 411,339.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,791.32 : 744,908.04 = 298,073.88 : x
  2. Step 2: Convert to fraction form
    539,791.32/744,908.04 = 298,073.88/x
  3. Step 3: Cross multiply
    539,791.32x = 744,908.04 × 298,073.88
  4. Step 4: Simplify right side
    539,791.32x = 222,037,629,726.00
  5. Step 5: Solve for x
    x = 222,037,629,726.00/539,791.32
  6. Step 6: Final answer
    x = 411,339.76

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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.