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Finding the Fourth Proportional to 1,193.84, 1,790.56 and 327.95

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Solution

The fourth proportional to 1,193.84, 1,790.56 and 327.95 is: 491.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.84 : 1,790.56 = 327.95 : x
  2. Step 2: Convert to fraction form
    1,193.84/1,790.56 = 327.95/x
  3. Step 3: Cross multiply
    1,193.84x = 1,790.56 × 327.95
  4. Step 4: Simplify right side
    1,193.84x = 587,214.15
  5. Step 5: Solve for x
    x = 587,214.15/1,193.84
  6. Step 6: Final answer
    x = 491.87

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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.