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Finding the Fourth Proportional to 372,239.80, 558,359.70 and 325,583.80

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Solution

The fourth proportional to 372,239.80, 558,359.70 and 325,583.80 is: 488,375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,239.80 : 558,359.70 = 325,583.80 : x
  2. Step 2: Convert to fraction form
    372,239.80/558,359.70 = 325,583.80/x
  3. Step 3: Cross multiply
    372,239.80x = 558,359.70 × 325,583.80
  4. Step 4: Simplify right side
    372,239.80x = 181,792,872,892.86
  5. Step 5: Solve for x
    x = 181,792,872,892.86/372,239.80
  6. Step 6: Final answer
    x = 488,375.70

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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.