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Finding the Fourth Proportional to 481.75, 722.36 and 173.43

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Solution

The fourth proportional to 481.75, 722.36 and 173.43 is: 260.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.75 : 722.36 = 173.43 : x
  2. Step 2: Convert to fraction form
    481.75/722.36 = 173.43/x
  3. Step 3: Cross multiply
    481.75x = 722.36 × 173.43
  4. Step 4: Simplify right side
    481.75x = 125,279.33
  5. Step 5: Solve for x
    x = 125,279.33/481.75
  6. Step 6: Final answer
    x = 260.05

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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.