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Finding the Fourth Proportional to 444,865.20, 666,390.60 and 275,866.80

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Solution

The fourth proportional to 444,865.20, 666,390.60 and 275,866.80 is: 413,237.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,865.20 : 666,390.60 = 275,866.80 : x
  2. Step 2: Convert to fraction form
    444,865.20/666,390.60 = 275,866.80/x
  3. Step 3: Cross multiply
    444,865.20x = 666,390.60 × 275,866.80
  4. Step 4: Simplify right side
    444,865.20x = 183,835,042,372.08
  5. Step 5: Solve for x
    x = 183,835,042,372.08/444,865.20
  6. Step 6: Final answer
    x = 413,237.63

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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.