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Finding the Fourth Proportional to 1,196.96, 1,796.44 and 547.76

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Solution

The fourth proportional to 1,196.96, 1,796.44 and 547.76 is: 822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196.96 : 1,796.44 = 547.76 : x
  2. Step 2: Convert to fraction form
    1,196.96/1,796.44 = 547.76/x
  3. Step 3: Cross multiply
    1,196.96x = 1,796.44 × 547.76
  4. Step 4: Simplify right side
    1,196.96x = 984,017.97
  5. Step 5: Solve for x
    x = 984,017.97/1,196.96
  6. Step 6: Final answer
    x = 822.10

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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.