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Finding the Fourth Proportional to 317,867.94, 476,358.57 and 238,889.70

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Solution

The fourth proportional to 317,867.94, 476,358.57 and 238,889.70 is: 358,001.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,867.94 : 476,358.57 = 238,889.70 : x
  2. Step 2: Convert to fraction form
    317,867.94/476,358.57 = 238,889.70/x
  3. Step 3: Cross multiply
    317,867.94x = 476,358.57 × 238,889.70
  4. Step 4: Simplify right side
    317,867.94x = 113,797,155,879.73
  5. Step 5: Solve for x
    x = 113,797,155,879.73/317,867.94
  6. Step 6: Final answer
    x = 358,001.36

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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.