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Finding the Fourth Proportional to 398,850.77, 597,777.21 and 199,226.87

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Solution

The fourth proportional to 398,850.77, 597,777.21 and 199,226.87 is: 298,591.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,850.77 : 597,777.21 = 199,226.87 : x
  2. Step 2: Convert to fraction form
    398,850.77/597,777.21 = 199,226.87/x
  3. Step 3: Cross multiply
    398,850.77x = 597,777.21 × 199,226.87
  4. Step 4: Simplify right side
    398,850.77x = 119,093,279,516.75
  5. Step 5: Solve for x
    x = 119,093,279,516.75/398,850.77
  6. Step 6: Final answer
    x = 298,591.08

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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.