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Finding the Fourth Proportional to 462.22, 693.60 and 173.64

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Solution

The fourth proportional to 462.22, 693.60 and 173.64 is: 260.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.22 : 693.60 = 173.64 : x
  2. Step 2: Convert to fraction form
    462.22/693.60 = 173.64/x
  3. Step 3: Cross multiply
    462.22x = 693.60 × 173.64
  4. Step 4: Simplify right side
    462.22x = 120,436.70
  5. Step 5: Solve for x
    x = 120,436.70/462.22
  6. Step 6: Final answer
    x = 260.56

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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.