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Finding the Fourth Proportional to 467.06, 644.49 and 267.84

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Solution

The fourth proportional to 467.06, 644.49 and 267.84 is: 369.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.06 : 644.49 = 267.84 : x
  2. Step 2: Convert to fraction form
    467.06/644.49 = 267.84/x
  3. Step 3: Cross multiply
    467.06x = 644.49 × 267.84
  4. Step 4: Simplify right side
    467.06x = 172,620.20
  5. Step 5: Solve for x
    x = 172,620.20/467.06
  6. Step 6: Final answer
    x = 369.59

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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.