Home / 812,183.62-1,120,822.25-449,613.53

Finding the Fourth Proportional to 812,183.62, 1,120,822.25 and 449,613.53

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Solution

The fourth proportional to 812,183.62, 1,120,822.25 and 449,613.53 is: 620,471.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,183.62 : 1,120,822.25 = 449,613.53 : x
  2. Step 2: Convert to fraction form
    812,183.62/1,120,822.25 = 449,613.53/x
  3. Step 3: Cross multiply
    812,183.62x = 1,120,822.25 × 449,613.53
  4. Step 4: Simplify right side
    812,183.62x = 503,936,846,076.98
  5. Step 5: Solve for x
    x = 503,936,846,076.98/812,183.62
  6. Step 6: Final answer
    x = 620,471.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.