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Finding the Fourth Proportional to 654,155.62, 981,614.12 and 275,048.89

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Solution

The fourth proportional to 654,155.62, 981,614.12 and 275,048.89 is: 412,733.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,155.62 : 981,614.12 = 275,048.89 : x
  2. Step 2: Convert to fraction form
    654,155.62/981,614.12 = 275,048.89/x
  3. Step 3: Cross multiply
    654,155.62x = 981,614.12 × 275,048.89
  4. Step 4: Simplify right side
    654,155.62x = 269,991,867,831.01
  5. Step 5: Solve for x
    x = 269,991,867,831.01/654,155.62
  6. Step 6: Final answer
    x = 412,733.39

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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.