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Finding the Fourth Proportional to 444,805.80, 667,208.70 and 440,658.60

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Solution

The fourth proportional to 444,805.80, 667,208.70 and 440,658.60 is: 660,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,805.80 : 667,208.70 = 440,658.60 : x
  2. Step 2: Convert to fraction form
    444,805.80/667,208.70 = 440,658.60/x
  3. Step 3: Cross multiply
    444,805.80x = 667,208.70 × 440,658.60
  4. Step 4: Simplify right side
    444,805.80x = 294,011,251,649.82
  5. Step 5: Solve for x
    x = 294,011,251,649.82/444,805.80
  6. Step 6: Final answer
    x = 660,987.90

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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.