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Finding the Fourth Proportional to 399,558.52, 599,425.32 and 150,240.52

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Solution

The fourth proportional to 399,558.52, 599,425.32 and 150,240.52 is: 225,393.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,558.52 : 599,425.32 = 150,240.52 : x
  2. Step 2: Convert to fraction form
    399,558.52/599,425.32 = 150,240.52/x
  3. Step 3: Cross multiply
    399,558.52x = 599,425.32 × 150,240.52
  4. Step 4: Simplify right side
    399,558.52x = 90,057,971,777.97
  5. Step 5: Solve for x
    x = 90,057,971,777.97/399,558.52
  6. Step 6: Final answer
    x = 225,393.70

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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.