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Finding the Fourth Proportional to 297.51, 446.31 and 194.97

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Solution

The fourth proportional to 297.51, 446.31 and 194.97 is: 292.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.51 : 446.31 = 194.97 : x
  2. Step 2: Convert to fraction form
    297.51/446.31 = 194.97/x
  3. Step 3: Cross multiply
    297.51x = 446.31 × 194.97
  4. Step 4: Simplify right side
    297.51x = 87,017.06
  5. Step 5: Solve for x
    x = 87,017.06/297.51
  6. Step 6: Final answer
    x = 292.48

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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.