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Finding the Fourth Proportional to 338.15, 466.67 and 198.24

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Solution

The fourth proportional to 338.15, 466.67 and 198.24 is: 273.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.15 : 466.67 = 198.24 : x
  2. Step 2: Convert to fraction form
    338.15/466.67 = 198.24/x
  3. Step 3: Cross multiply
    338.15x = 466.67 × 198.24
  4. Step 4: Simplify right side
    338.15x = 92,511.67
  5. Step 5: Solve for x
    x = 92,511.67/338.15
  6. Step 6: Final answer
    x = 273.59

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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.