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Finding the Fourth Proportional to 1,194.75, 1,791.76 and 414.62

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Solution

The fourth proportional to 1,194.75, 1,791.76 and 414.62 is: 621.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.75 : 1,791.76 = 414.62 : x
  2. Step 2: Convert to fraction form
    1,194.75/1,791.76 = 414.62/x
  3. Step 3: Cross multiply
    1,194.75x = 1,791.76 × 414.62
  4. Step 4: Simplify right side
    1,194.75x = 742,890.57
  5. Step 5: Solve for x
    x = 742,890.57/1,194.75
  6. Step 6: Final answer
    x = 621.80

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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.