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Finding the Fourth Proportional to 483,631.80, 726,138.90 and 273,679.80

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Solution

The fourth proportional to 483,631.80, 726,138.90 and 273,679.80 is: 410,910.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,631.80 : 726,138.90 = 273,679.80 : x
  2. Step 2: Convert to fraction form
    483,631.80/726,138.90 = 273,679.80/x
  3. Step 3: Cross multiply
    483,631.80x = 726,138.90 × 273,679.80
  4. Step 4: Simplify right side
    483,631.80x = 198,729,548,924.22
  5. Step 5: Solve for x
    x = 198,729,548,924.22/483,631.80
  6. Step 6: Final answer
    x = 410,910.84

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1.5x scale

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.