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Finding the Fourth Proportional to 2,793.85, 4,190.60 and 1,558.49

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Solution

The fourth proportional to 2,793.85, 4,190.60 and 1,558.49 is: 2,337.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,793.85 : 4,190.60 = 1,558.49 : x
  2. Step 2: Convert to fraction form
    2,793.85/4,190.60 = 1,558.49/x
  3. Step 3: Cross multiply
    2,793.85x = 4,190.60 × 1,558.49
  4. Step 4: Simplify right side
    2,793.85x = 6,530,991.14
  5. Step 5: Solve for x
    x = 6,530,991.14/2,793.85
  6. Step 6: Final answer
    x = 2,337.63

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1.5x scale

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.