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Finding the Fourth Proportional to 338.82, 467.59 and 226.59

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Solution

The fourth proportional to 338.82, 467.59 and 226.59 is: 312.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.82 : 467.59 = 226.59 : x
  2. Step 2: Convert to fraction form
    338.82/467.59 = 226.59/x
  3. Step 3: Cross multiply
    338.82x = 467.59 × 226.59
  4. Step 4: Simplify right side
    338.82x = 105,951.22
  5. Step 5: Solve for x
    x = 105,951.22/338.82
  6. Step 6: Final answer
    x = 312.71

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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.