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Finding the Fourth Proportional to 362,456.20, 543,757.20 and 303,698.80

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Solution

The fourth proportional to 362,456.20, 543,757.20 and 303,698.80 is: 455,609.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,456.20 : 543,757.20 = 303,698.80 : x
  2. Step 2: Convert to fraction form
    362,456.20/543,757.20 = 303,698.80/x
  3. Step 3: Cross multiply
    362,456.20x = 543,757.20 × 303,698.80
  4. Step 4: Simplify right side
    362,456.20x = 165,138,409,131.36
  5. Step 5: Solve for x
    x = 165,138,409,131.36/362,456.20
  6. Step 6: Final answer
    x = 455,609.28

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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.