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Finding the Fourth Proportional to 1,768.89, 2,652.42 and 794.16

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Solution

The fourth proportional to 1,768.89, 2,652.42 and 794.16 is: 1,190.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.89 : 2,652.42 = 794.16 : x
  2. Step 2: Convert to fraction form
    1,768.89/2,652.42 = 794.16/x
  3. Step 3: Cross multiply
    1,768.89x = 2,652.42 × 794.16
  4. Step 4: Simplify right side
    1,768.89x = 2,106,445.87
  5. Step 5: Solve for x
    x = 2,106,445.87/1,768.89
  6. Step 6: Final answer
    x = 1,190.83

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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.