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Finding the Fourth Proportional to 481,221.88, 664,069.26 and 266,362.36

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Solution

The fourth proportional to 481,221.88, 664,069.26 and 266,362.36 is: 367,570.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,221.88 : 664,069.26 = 266,362.36 : x
  2. Step 2: Convert to fraction form
    481,221.88/664,069.26 = 266,362.36/x
  3. Step 3: Cross multiply
    481,221.88x = 664,069.26 × 266,362.36
  4. Step 4: Simplify right side
    481,221.88x = 176,883,055,297.05
  5. Step 5: Solve for x
    x = 176,883,055,297.05/481,221.88
  6. Step 6: Final answer
    x = 367,570.68

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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.