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Finding the Fourth Proportional to 697.27, 1,045.92 and 235.24

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Solution

The fourth proportional to 697.27, 1,045.92 and 235.24 is: 352.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.27 : 1,045.92 = 235.24 : x
  2. Step 2: Convert to fraction form
    697.27/1,045.92 = 235.24/x
  3. Step 3: Cross multiply
    697.27x = 1,045.92 × 235.24
  4. Step 4: Simplify right side
    697.27x = 246,042.22
  5. Step 5: Solve for x
    x = 246,042.22/697.27
  6. Step 6: Final answer
    x = 352.87

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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.