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Finding the Fourth Proportional to 694.90, 1,041.95 and 232.55

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Solution

The fourth proportional to 694.90, 1,041.95 and 232.55 is: 348.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.90 : 1,041.95 = 232.55 : x
  2. Step 2: Convert to fraction form
    694.90/1,041.95 = 232.55/x
  3. Step 3: Cross multiply
    694.90x = 1,041.95 × 232.55
  4. Step 4: Simplify right side
    694.90x = 242,309.30
  5. Step 5: Solve for x
    x = 242,309.30/694.90
  6. Step 6: Final answer
    x = 348.70

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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.