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Finding the Fourth Proportional to 1,179.54, 1,768.44 and 562.74

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Solution

The fourth proportional to 1,179.54, 1,768.44 and 562.74 is: 843.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179.54 : 1,768.44 = 562.74 : x
  2. Step 2: Convert to fraction form
    1,179.54/1,768.44 = 562.74/x
  3. Step 3: Cross multiply
    1,179.54x = 1,768.44 × 562.74
  4. Step 4: Simplify right side
    1,179.54x = 995,171.93
  5. Step 5: Solve for x
    x = 995,171.93/1,179.54
  6. Step 6: Final answer
    x = 843.69

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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.