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Finding the Fourth Proportional to 1,194.84, 1,793.42 and 1,129.10

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Solution

The fourth proportional to 1,194.84, 1,793.42 and 1,129.10 is: 1,694.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.84 : 1,793.42 = 1,129.10 : x
  2. Step 2: Convert to fraction form
    1,194.84/1,793.42 = 1,129.10/x
  3. Step 3: Cross multiply
    1,194.84x = 1,793.42 × 1,129.10
  4. Step 4: Simplify right side
    1,194.84x = 2,024,950.52
  5. Step 5: Solve for x
    x = 2,024,950.52/1,194.84
  6. Step 6: Final answer
    x = 1,694.75

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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.