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Finding the Fourth Proportional to 577,231.20, 866,721.60 and 444,261.60

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Solution

The fourth proportional to 577,231.20, 866,721.60 and 444,261.60 is: 667,065.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,231.20 : 866,721.60 = 444,261.60 : x
  2. Step 2: Convert to fraction form
    577,231.20/866,721.60 = 444,261.60/x
  3. Step 3: Cross multiply
    577,231.20x = 866,721.60 × 444,261.60
  4. Step 4: Simplify right side
    577,231.20x = 385,051,124,770.56
  5. Step 5: Solve for x
    x = 385,051,124,770.56/577,231.20
  6. Step 6: Final answer
    x = 667,065.68

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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.