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Finding the Fourth Proportional to 579,082.32, 868,410 and 199,906.56

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Solution

The fourth proportional to 579,082.32, 868,410 and 199,906.56 is: 299,786.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,082.32 : 868,410 = 199,906.56 : x
  2. Step 2: Convert to fraction form
    579,082.32/868,410 = 199,906.56/x
  3. Step 3: Cross multiply
    579,082.32x = 868,410 × 199,906.56
  4. Step 4: Simplify right side
    579,082.32x = 173,600,855,769.60
  5. Step 5: Solve for x
    x = 173,600,855,769.60/579,082.32
  6. Step 6: Final answer
    x = 299,786.14

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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.