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Finding the Fourth Proportional to 598,879.20, 899,355.60 and 580,216.80

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Solution

The fourth proportional to 598,879.20, 899,355.60 and 580,216.80 is: 871,329.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,879.20 : 899,355.60 = 580,216.80 : x
  2. Step 2: Convert to fraction form
    598,879.20/899,355.60 = 580,216.80/x
  3. Step 3: Cross multiply
    598,879.20x = 899,355.60 × 580,216.80
  4. Step 4: Simplify right side
    598,879.20x = 521,821,228,294.08
  5. Step 5: Solve for x
    x = 521,821,228,294.08/598,879.20
  6. Step 6: Final answer
    x = 871,329.69

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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.