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Finding the Fourth Proportional to 1,194.56, 1,791.84 and 616.64

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Solution

The fourth proportional to 1,194.56, 1,791.84 and 616.64 is: 924.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.56 : 1,791.84 = 616.64 : x
  2. Step 2: Convert to fraction form
    1,194.56/1,791.84 = 616.64/x
  3. Step 3: Cross multiply
    1,194.56x = 1,791.84 × 616.64
  4. Step 4: Simplify right side
    1,194.56x = 1,104,920.22
  5. Step 5: Solve for x
    x = 1,104,920.22/1,194.56
  6. Step 6: Final answer
    x = 924.96

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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.