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Finding the Fourth Proportional to 335.52, 462.96 and 217.44

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Solution

The fourth proportional to 335.52, 462.96 and 217.44 is: 300.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.52 : 462.96 = 217.44 : x
  2. Step 2: Convert to fraction form
    335.52/462.96 = 217.44/x
  3. Step 3: Cross multiply
    335.52x = 462.96 × 217.44
  4. Step 4: Simplify right side
    335.52x = 100,666.02
  5. Step 5: Solve for x
    x = 100,666.02/335.52
  6. Step 6: Final answer
    x = 300.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.