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Finding the Fourth Proportional to 323.94, 446.84 and 235.31

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Solution

The fourth proportional to 323.94, 446.84 and 235.31 is: 324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.94 : 446.84 = 235.31 : x
  2. Step 2: Convert to fraction form
    323.94/446.84 = 235.31/x
  3. Step 3: Cross multiply
    323.94x = 446.84 × 235.31
  4. Step 4: Simplify right side
    323.94x = 105,147.82
  5. Step 5: Solve for x
    x = 105,147.82/323.94
  6. Step 6: Final answer
    x = 324.60

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Why These Related Problems?

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