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Finding the Fourth Proportional to 317,867.44, 476,357.82 and 238,889.20

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Solution

The fourth proportional to 317,867.44, 476,357.82 and 238,889.20 is: 358,000.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,867.44 : 476,357.82 = 238,889.20 : x
  2. Step 2: Convert to fraction form
    317,867.44/476,357.82 = 238,889.20/x
  3. Step 3: Cross multiply
    317,867.44x = 476,357.82 × 238,889.20
  4. Step 4: Simplify right side
    317,867.44x = 113,796,738,533.54
  5. Step 5: Solve for x
    x = 113,796,738,533.54/317,867.44
  6. Step 6: Final answer
    x = 358,000.61

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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.