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Finding the Fourth Proportional to 351.23, 484.24 and 226.67

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Solution

The fourth proportional to 351.23, 484.24 and 226.67 is: 312.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.23 : 484.24 = 226.67 : x
  2. Step 2: Convert to fraction form
    351.23/484.24 = 226.67/x
  3. Step 3: Cross multiply
    351.23x = 484.24 × 226.67
  4. Step 4: Simplify right side
    351.23x = 109,759.69
  5. Step 5: Solve for x
    x = 109,759.69/351.23
  6. Step 6: Final answer
    x = 312.51

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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.