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Finding the Fourth Proportional to 439,234.56, 605,963.70 and 296,040.60

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Solution

The fourth proportional to 439,234.56, 605,963.70 and 296,040.60 is: 408,414.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,234.56 : 605,963.70 = 296,040.60 : x
  2. Step 2: Convert to fraction form
    439,234.56/605,963.70 = 296,040.60/x
  3. Step 3: Cross multiply
    439,234.56x = 605,963.70 × 296,040.60
  4. Step 4: Simplify right side
    439,234.56x = 179,389,857,326.22
  5. Step 5: Solve for x
    x = 179,389,857,326.22/439,234.56
  6. Step 6: Final answer
    x = 408,414.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.