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Finding the Fourth Proportional to 444,811.20, 667,216.80 and 395,044.80

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Solution

The fourth proportional to 444,811.20, 667,216.80 and 395,044.80 is: 592,567.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,811.20 : 667,216.80 = 395,044.80 : x
  2. Step 2: Convert to fraction form
    444,811.20/667,216.80 = 395,044.80/x
  3. Step 3: Cross multiply
    444,811.20x = 667,216.80 × 395,044.80
  4. Step 4: Simplify right side
    444,811.20x = 263,580,527,312.64
  5. Step 5: Solve for x
    x = 263,580,527,312.64/444,811.20
  6. Step 6: Final answer
    x = 592,567.20

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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.