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Finding the Fourth Proportional to 1,193.92, 1,789.76 and 544

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Solution

The fourth proportional to 1,193.92, 1,789.76 and 544 is: 815.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.92 : 1,789.76 = 544 : x
  2. Step 2: Convert to fraction form
    1,193.92/1,789.76 = 544/x
  3. Step 3: Cross multiply
    1,193.92x = 1,789.76 × 544
  4. Step 4: Simplify right side
    1,193.92x = 973,629.44
  5. Step 5: Solve for x
    x = 973,629.44/1,193.92
  6. Step 6: Final answer
    x = 815.49

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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.