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Finding the Fourth Proportional to 654,163.56, 981,245.34 and 204,888.15

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Solution

The fourth proportional to 654,163.56, 981,245.34 and 204,888.15 is: 307,332.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,163.56 : 981,245.34 = 204,888.15 : x
  2. Step 2: Convert to fraction form
    654,163.56/981,245.34 = 204,888.15/x
  3. Step 3: Cross multiply
    654,163.56x = 981,245.34 × 204,888.15
  4. Step 4: Simplify right side
    654,163.56x = 201,045,542,408.72
  5. Step 5: Solve for x
    x = 201,045,542,408.72/654,163.56
  6. Step 6: Final answer
    x = 307,332.23

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Double scale
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Similar ratio
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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.