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Finding the Fourth Proportional to 323.10, 446.04 and 218.74

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Solution

The fourth proportional to 323.10, 446.04 and 218.74 is: 301.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.10 : 446.04 = 218.74 : x
  2. Step 2: Convert to fraction form
    323.10/446.04 = 218.74/x
  3. Step 3: Cross multiply
    323.10x = 446.04 × 218.74
  4. Step 4: Simplify right side
    323.10x = 97,566.81
  5. Step 5: Solve for x
    x = 97,566.81/323.10
  6. Step 6: Final answer
    x = 301.97

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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.