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Finding the Fourth Proportional to 694.99, 1,042.38 and 232.63

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Solution

The fourth proportional to 694.99, 1,042.38 and 232.63 is: 348.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.99 : 1,042.38 = 232.63 : x
  2. Step 2: Convert to fraction form
    694.99/1,042.38 = 232.63/x
  3. Step 3: Cross multiply
    694.99x = 1,042.38 × 232.63
  4. Step 4: Simplify right side
    694.99x = 242,488.86
  5. Step 5: Solve for x
    x = 242,488.86/694.99
  6. Step 6: Final answer
    x = 348.91

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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.