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Finding the Fourth Proportional to 1,994.59, 2,752.47 and 1,198.38

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Solution

The fourth proportional to 1,994.59, 2,752.47 and 1,198.38 is: 1,653.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.59 : 2,752.47 = 1,198.38 : x
  2. Step 2: Convert to fraction form
    1,994.59/2,752.47 = 1,198.38/x
  3. Step 3: Cross multiply
    1,994.59x = 2,752.47 × 1,198.38
  4. Step 4: Simplify right side
    1,994.59x = 3,298,505.00
  5. Step 5: Solve for x
    x = 3,298,505.00/1,994.59
  6. Step 6: Final answer
    x = 1,653.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.