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Finding the Fourth Proportional to 483,945.60, 726,177.60 and 203,491.20

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Solution

The fourth proportional to 483,945.60, 726,177.60 and 203,491.20 is: 305,345.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,945.60 : 726,177.60 = 203,491.20 : x
  2. Step 2: Convert to fraction form
    483,945.60/726,177.60 = 203,491.20/x
  3. Step 3: Cross multiply
    483,945.60x = 726,177.60 × 203,491.20
  4. Step 4: Simplify right side
    483,945.60x = 147,770,751,237.12
  5. Step 5: Solve for x
    x = 147,770,751,237.12/483,945.60
  6. Step 6: Final answer
    x = 305,345.79

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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.