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Finding the Fourth Proportional to 654,194.80, 981,324.60 and 339,266.80

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Solution

The fourth proportional to 654,194.80, 981,324.60 and 339,266.80 is: 508,917.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,194.80 : 981,324.60 = 339,266.80 : x
  2. Step 2: Convert to fraction form
    654,194.80/981,324.60 = 339,266.80/x
  3. Step 3: Cross multiply
    654,194.80x = 981,324.60 × 339,266.80
  4. Step 4: Simplify right side
    654,194.80x = 332,930,856,803.28
  5. Step 5: Solve for x
    x = 332,930,856,803.28/654,194.80
  6. Step 6: Final answer
    x = 508,917.00

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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.