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Finding the Fourth Proportional to 366,239.80, 548,713.86 and 320,753.71

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Solution

The fourth proportional to 366,239.80, 548,713.86 and 320,753.71 is: 480,564.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,239.80 : 548,713.86 = 320,753.71 : x
  2. Step 2: Convert to fraction form
    366,239.80/548,713.86 = 320,753.71/x
  3. Step 3: Cross multiply
    366,239.80x = 548,713.86 × 320,753.71
  4. Step 4: Simplify right side
    366,239.80x = 176,002,006,323.42
  5. Step 5: Solve for x
    x = 176,002,006,323.42/366,239.80
  6. Step 6: Final answer
    x = 480,564.94

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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.