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Finding the Fourth Proportional to 1,193.74, 1,789.73 and 500.61

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Solution

The fourth proportional to 1,193.74, 1,789.73 and 500.61 is: 750.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.74 : 1,789.73 = 500.61 : x
  2. Step 2: Convert to fraction form
    1,193.74/1,789.73 = 500.61/x
  3. Step 3: Cross multiply
    1,193.74x = 1,789.73 × 500.61
  4. Step 4: Simplify right side
    1,193.74x = 895,956.74
  5. Step 5: Solve for x
    x = 895,956.74/1,193.74
  6. Step 6: Final answer
    x = 750.55

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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.