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Finding the Fourth Proportional to 789.48, 1,184.08 and 295.75

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Solution

The fourth proportional to 789.48, 1,184.08 and 295.75 is: 443.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    789.48 : 1,184.08 = 295.75 : x
  2. Step 2: Convert to fraction form
    789.48/1,184.08 = 295.75/x
  3. Step 3: Cross multiply
    789.48x = 1,184.08 × 295.75
  4. Step 4: Simplify right side
    789.48x = 350,191.66
  5. Step 5: Solve for x
    x = 350,191.66/789.48
  6. Step 6: Final answer
    x = 443.57

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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.