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Finding the Fourth Proportional to 311.24, 466.40 and 234.26

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Solution

The fourth proportional to 311.24, 466.40 and 234.26 is: 351.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    311.24 : 466.40 = 234.26 : x
  2. Step 2: Convert to fraction form
    311.24/466.40 = 234.26/x
  3. Step 3: Cross multiply
    311.24x = 466.40 × 234.26
  4. Step 4: Simplify right side
    311.24x = 109,255.36
  5. Step 5: Solve for x
    x = 109,255.36/311.24
  6. Step 6: Final answer
    x = 351.04

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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.