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Finding the Fourth Proportional to 317.44, 476.22 and 155.04

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Solution

The fourth proportional to 317.44, 476.22 and 155.04 is: 232.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.44 : 476.22 = 155.04 : x
  2. Step 2: Convert to fraction form
    317.44/476.22 = 155.04/x
  3. Step 3: Cross multiply
    317.44x = 476.22 × 155.04
  4. Step 4: Simplify right side
    317.44x = 73,833.15
  5. Step 5: Solve for x
    x = 73,833.15/317.44
  6. Step 6: Final answer
    x = 232.59

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.