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Finding the Fourth Proportional to 467.17, 644.26 and 361.92

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Solution

The fourth proportional to 467.17, 644.26 and 361.92 is: 499.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.17 : 644.26 = 361.92 : x
  2. Step 2: Convert to fraction form
    467.17/644.26 = 361.92/x
  3. Step 3: Cross multiply
    467.17x = 644.26 × 361.92
  4. Step 4: Simplify right side
    467.17x = 233,170.58
  5. Step 5: Solve for x
    x = 233,170.58/467.17
  6. Step 6: Final answer
    x = 499.11

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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.