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Finding the Fourth Proportional to 1,936.44, 2,672.44 and 1,190.22

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Solution

The fourth proportional to 1,936.44, 2,672.44 and 1,190.22 is: 1,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.44 : 2,672.44 = 1,190.22 : x
  2. Step 2: Convert to fraction form
    1,936.44/2,672.44 = 1,190.22/x
  3. Step 3: Cross multiply
    1,936.44x = 2,672.44 × 1,190.22
  4. Step 4: Simplify right side
    1,936.44x = 3,180,791.54
  5. Step 5: Solve for x
    x = 3,180,791.54/1,936.44
  6. Step 6: Final answer
    x = 1,642.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.