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Finding the Fourth Proportional to 444,791.80, 667,187.70 and 411,986.80

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Solution

The fourth proportional to 444,791.80, 667,187.70 and 411,986.80 is: 617,980.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,791.80 : 667,187.70 = 411,986.80 : x
  2. Step 2: Convert to fraction form
    444,791.80/667,187.70 = 411,986.80/x
  3. Step 3: Cross multiply
    444,791.80x = 667,187.70 × 411,986.80
  4. Step 4: Simplify right side
    444,791.80x = 274,872,525,522.36
  5. Step 5: Solve for x
    x = 274,872,525,522.36/444,791.80
  6. Step 6: Final answer
    x = 617,980.20

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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.