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Finding the Fourth Proportional to 483.36, 724.45 and 252.12

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Solution

The fourth proportional to 483.36, 724.45 and 252.12 is: 377.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.36 : 724.45 = 252.12 : x
  2. Step 2: Convert to fraction form
    483.36/724.45 = 252.12/x
  3. Step 3: Cross multiply
    483.36x = 724.45 × 252.12
  4. Step 4: Simplify right side
    483.36x = 182,648.33
  5. Step 5: Solve for x
    x = 182,648.33/483.36
  6. Step 6: Final answer
    x = 377.87

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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.