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Finding the Fourth Proportional to 354.88, 531.96 and 226

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Solution

The fourth proportional to 354.88, 531.96 and 226 is: 338.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.88 : 531.96 = 226 : x
  2. Step 2: Convert to fraction form
    354.88/531.96 = 226/x
  3. Step 3: Cross multiply
    354.88x = 531.96 × 226
  4. Step 4: Simplify right side
    354.88x = 120,222.96
  5. Step 5: Solve for x
    x = 120,222.96/354.88
  6. Step 6: Final answer
    x = 338.77

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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.