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Finding the Fourth Proportional to 694.27, 1,041.13 and 231.96

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Solution

The fourth proportional to 694.27, 1,041.13 and 231.96 is: 347.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.27 : 1,041.13 = 231.96 : x
  2. Step 2: Convert to fraction form
    694.27/1,041.13 = 231.96/x
  3. Step 3: Cross multiply
    694.27x = 1,041.13 × 231.96
  4. Step 4: Simplify right side
    694.27x = 241,500.51
  5. Step 5: Solve for x
    x = 241,500.51/694.27
  6. Step 6: Final answer
    x = 347.85

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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.