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Finding the Fourth Proportional to 483,608.80, 726,104.40 and 273,656.80

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Solution

The fourth proportional to 483,608.80, 726,104.40 and 273,656.80 is: 410,876.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,608.80 : 726,104.40 = 273,656.80 : x
  2. Step 2: Convert to fraction form
    483,608.80/726,104.40 = 273,656.80/x
  3. Step 3: Cross multiply
    483,608.80x = 726,104.40 × 273,656.80
  4. Step 4: Simplify right side
    483,608.80x = 198,703,406,569.92
  5. Step 5: Solve for x
    x = 198,703,406,569.92/483,608.80
  6. Step 6: Final answer
    x = 410,876.33

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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.