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Finding the Fourth Proportional to 984.92, 1,474.76 and 594.39

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Solution

The fourth proportional to 984.92, 1,474.76 and 594.39 is: 890.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    984.92 : 1,474.76 = 594.39 : x
  2. Step 2: Convert to fraction form
    984.92/1,474.76 = 594.39/x
  3. Step 3: Cross multiply
    984.92x = 1,474.76 × 594.39
  4. Step 4: Simplify right side
    984.92x = 876,589.61
  5. Step 5: Solve for x
    x = 876,589.61/984.92
  6. Step 6: Final answer
    x = 890.02

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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.