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Finding the Fourth Proportional to 344,067.57, 474,621.86 and 319,711.92

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Solution

The fourth proportional to 344,067.57, 474,621.86 and 319,711.92 is: 441,024.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,067.57 : 474,621.86 = 319,711.92 : x
  2. Step 2: Convert to fraction form
    344,067.57/474,621.86 = 319,711.92/x
  3. Step 3: Cross multiply
    344,067.57x = 474,621.86 × 319,711.92
  4. Step 4: Simplify right side
    344,067.57x = 151,742,266,134.57
  5. Step 5: Solve for x
    x = 151,742,266,134.57/344,067.57
  6. Step 6: Final answer
    x = 441,024.61

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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.