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Finding the Fourth Proportional to 633.24, 949.92 and 222.36

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Solution

The fourth proportional to 633.24, 949.92 and 222.36 is: 333.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.24 : 949.92 = 222.36 : x
  2. Step 2: Convert to fraction form
    633.24/949.92 = 222.36/x
  3. Step 3: Cross multiply
    633.24x = 949.92 × 222.36
  4. Step 4: Simplify right side
    633.24x = 211,224.21
  5. Step 5: Solve for x
    x = 211,224.21/633.24
  6. Step 6: Final answer
    x = 333.56

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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.