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Finding the Fourth Proportional to 481,468.50, 664,426.11 and 266,608.56

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Solution

The fourth proportional to 481,468.50, 664,426.11 and 266,608.56 is: 367,919.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,468.50 : 664,426.11 = 266,608.56 : x
  2. Step 2: Convert to fraction form
    481,468.50/664,426.11 = 266,608.56/x
  3. Step 3: Cross multiply
    481,468.50x = 664,426.11 × 266,608.56
  4. Step 4: Simplify right side
    481,468.50x = 177,141,688,413.50
  5. Step 5: Solve for x
    x = 177,141,688,413.50/481,468.50
  6. Step 6: Final answer
    x = 367,919.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.