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Finding the Fourth Proportional to 1,198.01, 1,794.65 and 935.10

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Solution

The fourth proportional to 1,198.01, 1,794.65 and 935.10 is: 1,400.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198.01 : 1,794.65 = 935.10 : x
  2. Step 2: Convert to fraction form
    1,198.01/1,794.65 = 935.10/x
  3. Step 3: Cross multiply
    1,198.01x = 1,794.65 × 935.10
  4. Step 4: Simplify right side
    1,198.01x = 1,678,172.54
  5. Step 5: Solve for x
    x = 1,678,172.54/1,198.01
  6. Step 6: Final answer
    x = 1,400.81

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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.