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Finding the Fourth Proportional to 298.29, 411.71 and 173.96

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Solution

The fourth proportional to 298.29, 411.71 and 173.96 is: 240.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.29 : 411.71 = 173.96 : x
  2. Step 2: Convert to fraction form
    298.29/411.71 = 173.96/x
  3. Step 3: Cross multiply
    298.29x = 411.71 × 173.96
  4. Step 4: Simplify right side
    298.29x = 71,621.07
  5. Step 5: Solve for x
    x = 71,621.07/298.29
  6. Step 6: Final answer
    x = 240.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.