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Finding the Fourth Proportional to 311.18, 467.00 and 230.24

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Solution

The fourth proportional to 311.18, 467.00 and 230.24 is: 345.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    311.18 : 467.00 = 230.24 : x
  2. Step 2: Convert to fraction form
    311.18/467.00 = 230.24/x
  3. Step 3: Cross multiply
    311.18x = 467.00 × 230.24
  4. Step 4: Simplify right side
    311.18x = 107,518.59
  5. Step 5: Solve for x
    x = 107,518.59/311.18
  6. Step 6: Final answer
    x = 345.52

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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.