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Finding the Fourth Proportional to 1,195.50, 1,793.25 and 329.81

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Solution

The fourth proportional to 1,195.50, 1,793.25 and 329.81 is: 494.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195.50 : 1,793.25 = 329.81 : x
  2. Step 2: Convert to fraction form
    1,195.50/1,793.25 = 329.81/x
  3. Step 3: Cross multiply
    1,195.50x = 1,793.25 × 329.81
  4. Step 4: Simplify right side
    1,195.50x = 591,436.27
  5. Step 5: Solve for x
    x = 591,436.27/1,195.50
  6. Step 6: Final answer
    x = 494.72

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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.