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Finding the Fourth Proportional to 591,616.20, 886,403.70 and 275,424.60

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Solution

The fourth proportional to 591,616.20, 886,403.70 and 275,424.60 is: 412,661.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,616.20 : 886,403.70 = 275,424.60 : x
  2. Step 2: Convert to fraction form
    591,616.20/886,403.70 = 275,424.60/x
  3. Step 3: Cross multiply
    591,616.20x = 886,403.70 × 275,424.60
  4. Step 4: Simplify right side
    591,616.20x = 244,137,384,511.02
  5. Step 5: Solve for x
    x = 244,137,384,511.02/591,616.20
  6. Step 6: Final answer
    x = 412,661.76

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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.