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Finding the Fourth Proportional to 399,231.47, 595,791.83 and 356,633.16

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Solution

The fourth proportional to 399,231.47, 595,791.83 and 356,633.16 is: 532,220.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,231.47 : 595,791.83 = 356,633.16 : x
  2. Step 2: Convert to fraction form
    399,231.47/595,791.83 = 356,633.16/x
  3. Step 3: Cross multiply
    399,231.47x = 595,791.83 × 356,633.16
  4. Step 4: Simplify right side
    399,231.47x = 212,479,121,251.92
  5. Step 5: Solve for x
    x = 212,479,121,251.92/399,231.47
  6. Step 6: Final answer
    x = 532,220.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.