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Finding the Fourth Proportional to 694.45, 1,041.84 and 232.28

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Solution

The fourth proportional to 694.45, 1,041.84 and 232.28 is: 348.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.45 : 1,041.84 = 232.28 : x
  2. Step 2: Convert to fraction form
    694.45/1,041.84 = 232.28/x
  3. Step 3: Cross multiply
    694.45x = 1,041.84 × 232.28
  4. Step 4: Simplify right side
    694.45x = 241,993.39
  5. Step 5: Solve for x
    x = 241,993.39/694.45
  6. Step 6: Final answer
    x = 348.47

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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.