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Finding the Fourth Proportional to 478,149.86, 716,745.56 and 222,162.26

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Solution

The fourth proportional to 478,149.86, 716,745.56 and 222,162.26 is: 333,020.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,149.86 : 716,745.56 = 222,162.26 : x
  2. Step 2: Convert to fraction form
    478,149.86/716,745.56 = 222,162.26/x
  3. Step 3: Cross multiply
    478,149.86x = 716,745.56 × 222,162.26
  4. Step 4: Simplify right side
    478,149.86x = 159,233,813,454.57
  5. Step 5: Solve for x
    x = 159,233,813,454.57/478,149.86
  6. Step 6: Final answer
    x = 333,020.73

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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.