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Finding the Fourth Proportional to 1,193.68, 1,790.49 and 371.95

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Solution

The fourth proportional to 1,193.68, 1,790.49 and 371.95 is: 557.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.68 : 1,790.49 = 371.95 : x
  2. Step 2: Convert to fraction form
    1,193.68/1,790.49 = 371.95/x
  3. Step 3: Cross multiply
    1,193.68x = 1,790.49 × 371.95
  4. Step 4: Simplify right side
    1,193.68x = 665,972.76
  5. Step 5: Solve for x
    x = 665,972.76/1,193.68
  6. Step 6: Final answer
    x = 557.92

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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.