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Finding the Fourth Proportional to 3,593.89, 5,390.90 and 996.83

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Solution

The fourth proportional to 3,593.89, 5,390.90 and 996.83 is: 1,495.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,593.89 : 5,390.90 = 996.83 : x
  2. Step 2: Convert to fraction form
    3,593.89/5,390.90 = 996.83/x
  3. Step 3: Cross multiply
    3,593.89x = 5,390.90 × 996.83
  4. Step 4: Simplify right side
    3,593.89x = 5,373,810.85
  5. Step 5: Solve for x
    x = 5,373,810.85/3,593.89
  6. Step 6: Final answer
    x = 1,495.26

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Double scale
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Similar ratio
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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.