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Finding the Fourth Proportional to 1,194.80, 1,791.48 and 546.08

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Solution

The fourth proportional to 1,194.80, 1,791.48 and 546.08 is: 818.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.80 : 1,791.48 = 546.08 : x
  2. Step 2: Convert to fraction form
    1,194.80/1,791.48 = 546.08/x
  3. Step 3: Cross multiply
    1,194.80x = 1,791.48 × 546.08
  4. Step 4: Simplify right side
    1,194.80x = 978,291.40
  5. Step 5: Solve for x
    x = 978,291.40/1,194.80
  6. Step 6: Final answer
    x = 818.79

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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.