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Finding the Fourth Proportional to 361,785.56, 499,231.08 and 200,640.11

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Solution

The fourth proportional to 361,785.56, 499,231.08 and 200,640.11 is: 276,865.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,785.56 : 499,231.08 = 200,640.11 : x
  2. Step 2: Convert to fraction form
    361,785.56/499,231.08 = 200,640.11/x
  3. Step 3: Cross multiply
    361,785.56x = 499,231.08 × 200,640.11
  4. Step 4: Simplify right side
    361,785.56x = 100,165,776,310.46
  5. Step 5: Solve for x
    x = 100,165,776,310.46/361,785.56
  6. Step 6: Final answer
    x = 276,865.05

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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.