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Finding the Fourth Proportional to 1,194.16, 1,791.29 and 328.47

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Solution

The fourth proportional to 1,194.16, 1,791.29 and 328.47 is: 492.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.16 : 1,791.29 = 328.47 : x
  2. Step 2: Convert to fraction form
    1,194.16/1,791.29 = 328.47/x
  3. Step 3: Cross multiply
    1,194.16x = 1,791.29 × 328.47
  4. Step 4: Simplify right side
    1,194.16x = 588,385.03
  5. Step 5: Solve for x
    x = 588,385.03/1,194.16
  6. Step 6: Final answer
    x = 492.72

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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.