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Finding the Fourth Proportional to 1,194.72, 1,793.40 and 708.16

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Solution

The fourth proportional to 1,194.72, 1,793.40 and 708.16 is: 1,063.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.72 : 1,793.40 = 708.16 : x
  2. Step 2: Convert to fraction form
    1,194.72/1,793.40 = 708.16/x
  3. Step 3: Cross multiply
    1,194.72x = 1,793.40 × 708.16
  4. Step 4: Simplify right side
    1,194.72x = 1,270,014.14
  5. Step 5: Solve for x
    x = 1,270,014.14/1,194.72
  6. Step 6: Final answer
    x = 1,063.02

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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.