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Finding the Fourth Proportional to 335.46, 462.88 and 230.64

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Solution

The fourth proportional to 335.46, 462.88 and 230.64 is: 318.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.46 : 462.88 = 230.64 : x
  2. Step 2: Convert to fraction form
    335.46/462.88 = 230.64/x
  3. Step 3: Cross multiply
    335.46x = 462.88 × 230.64
  4. Step 4: Simplify right side
    335.46x = 106,758.64
  5. Step 5: Solve for x
    x = 106,758.64/335.46
  6. Step 6: Final answer
    x = 318.25

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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.