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Finding the Fourth Proportional to 968.74, 1,452.30 and 481.96

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Solution

The fourth proportional to 968.74, 1,452.30 and 481.96 is: 722.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.74 : 1,452.30 = 481.96 : x
  2. Step 2: Convert to fraction form
    968.74/1,452.30 = 481.96/x
  3. Step 3: Cross multiply
    968.74x = 1,452.30 × 481.96
  4. Step 4: Simplify right side
    968.74x = 699,950.51
  5. Step 5: Solve for x
    x = 699,950.51/968.74
  6. Step 6: Final answer
    x = 722.54

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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.