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Finding the Fourth Proportional to 354.11, 485.60 and 337.10

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Solution

The fourth proportional to 354.11, 485.60 and 337.10 is: 462.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.11 : 485.60 = 337.10 : x
  2. Step 2: Convert to fraction form
    354.11/485.60 = 337.10/x
  3. Step 3: Cross multiply
    354.11x = 485.60 × 337.10
  4. Step 4: Simplify right side
    354.11x = 163,691.65
  5. Step 5: Solve for x
    x = 163,691.65/354.11
  6. Step 6: Final answer
    x = 462.27

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.