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Finding the Fourth Proportional to 462.96, 694.60 and 174.48

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Solution

The fourth proportional to 462.96, 694.60 and 174.48 is: 261.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.96 : 694.60 = 174.48 : x
  2. Step 2: Convert to fraction form
    462.96/694.60 = 174.48/x
  3. Step 3: Cross multiply
    462.96x = 694.60 × 174.48
  4. Step 4: Simplify right side
    462.96x = 121,193.81
  5. Step 5: Solve for x
    x = 121,193.81/462.96
  6. Step 6: Final answer
    x = 261.78

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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.