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Finding the Fourth Proportional to 3,194.81, 4,791.42 and 1,114.52

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Solution

The fourth proportional to 3,194.81, 4,791.42 and 1,114.52 is: 1,671.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,194.81 : 4,791.42 = 1,114.52 : x
  2. Step 2: Convert to fraction form
    3,194.81/4,791.42 = 1,114.52/x
  3. Step 3: Cross multiply
    3,194.81x = 4,791.42 × 1,114.52
  4. Step 4: Simplify right side
    3,194.81x = 5,340,109.46
  5. Step 5: Solve for x
    x = 5,340,109.46/3,194.81
  6. Step 6: Final answer
    x = 1,671.50

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1.5x scale

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.