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Finding the Fourth Proportional to 317.96, 476.46 and 236.44

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Solution

The fourth proportional to 317.96, 476.46 and 236.44 is: 354.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.96 : 476.46 = 236.44 : x
  2. Step 2: Convert to fraction form
    317.96/476.46 = 236.44/x
  3. Step 3: Cross multiply
    317.96x = 476.46 × 236.44
  4. Step 4: Simplify right side
    317.96x = 112,654.20
  5. Step 5: Solve for x
    x = 112,654.20/317.96
  6. Step 6: Final answer
    x = 354.30

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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.