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Finding the Fourth Proportional to 1,194.54, 1,791.81 and 328.98

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Solution

The fourth proportional to 1,194.54, 1,791.81 and 328.98 is: 493.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.54 : 1,791.81 = 328.98 : x
  2. Step 2: Convert to fraction form
    1,194.54/1,791.81 = 328.98/x
  3. Step 3: Cross multiply
    1,194.54x = 1,791.81 × 328.98
  4. Step 4: Simplify right side
    1,194.54x = 589,469.65
  5. Step 5: Solve for x
    x = 589,469.65/1,194.54
  6. Step 6: Final answer
    x = 493.47

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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.