Home / 812,353.56-1,121,082.94-449,777.41

Finding the Fourth Proportional to 812,353.56, 1,121,082.94 and 449,777.41

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Solution

The fourth proportional to 812,353.56, 1,121,082.94 and 449,777.41 is: 620,712.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,353.56 : 1,121,082.94 = 449,777.41 : x
  2. Step 2: Convert to fraction form
    812,353.56/1,121,082.94 = 449,777.41/x
  3. Step 3: Cross multiply
    812,353.56x = 1,121,082.94 × 449,777.41
  4. Step 4: Simplify right side
    812,353.56x = 504,237,777,221.24
  5. Step 5: Solve for x
    x = 504,237,777,221.24/812,353.56
  6. Step 6: Final answer
    x = 620,712.21

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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.