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Finding the Fourth Proportional to 736, 1,104.20 and 223

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Solution

The fourth proportional to 736, 1,104.20 and 223 is: 334.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    736 : 1,104.20 = 223 : x
  2. Step 2: Convert to fraction form
    736/1,104.20 = 223/x
  3. Step 3: Cross multiply
    736x = 1,104.20 × 223
  4. Step 4: Simplify right side
    736x = 246,236.60
  5. Step 5: Solve for x
    x = 246,236.60/736
  6. Step 6: Final answer
    x = 334.56

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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.