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Finding the Fourth Proportional to 1,194.41, 1,791.70 and 361.60

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Solution

The fourth proportional to 1,194.41, 1,791.70 and 361.60 is: 542.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.41 : 1,791.70 = 361.60 : x
  2. Step 2: Convert to fraction form
    1,194.41/1,791.70 = 361.60/x
  3. Step 3: Cross multiply
    1,194.41x = 1,791.70 × 361.60
  4. Step 4: Simplify right side
    1,194.41x = 647,873.34
  5. Step 5: Solve for x
    x = 647,873.34/1,194.41
  6. Step 6: Final answer
    x = 542.42

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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.