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Finding the Fourth Proportional to 335.32, 462.42 and 329.80

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Solution

The fourth proportional to 335.32, 462.42 and 329.80 is: 454.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.32 : 462.42 = 329.80 : x
  2. Step 2: Convert to fraction form
    335.32/462.42 = 329.80/x
  3. Step 3: Cross multiply
    335.32x = 462.42 × 329.80
  4. Step 4: Simplify right side
    335.32x = 152,506.12
  5. Step 5: Solve for x
    x = 152,506.12/335.32
  6. Step 6: Final answer
    x = 454.81

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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.