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Finding the Fourth Proportional to 372,791.20, 558,720.48 and 293,592.64

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Solution

The fourth proportional to 372,791.20, 558,720.48 and 293,592.64 is: 440,021.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,791.20 : 558,720.48 = 293,592.64 : x
  2. Step 2: Convert to fraction form
    372,791.20/558,720.48 = 293,592.64/x
  3. Step 3: Cross multiply
    372,791.20x = 558,720.48 × 293,592.64
  4. Step 4: Simplify right side
    372,791.20x = 164,036,220,745.27
  5. Step 5: Solve for x
    x = 164,036,220,745.27/372,791.20
  6. Step 6: Final answer
    x = 440,021.71

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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.