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Finding the Fourth Proportional to 444,838.40, 667,257.60 and 164,319.20

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Solution

The fourth proportional to 444,838.40, 667,257.60 and 164,319.20 is: 246,478.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,838.40 : 667,257.60 = 164,319.20 : x
  2. Step 2: Convert to fraction form
    444,838.40/667,257.60 = 164,319.20/x
  3. Step 3: Cross multiply
    444,838.40x = 667,257.60 × 164,319.20
  4. Step 4: Simplify right side
    444,838.40x = 109,643,235,025.92
  5. Step 5: Solve for x
    x = 109,643,235,025.92/444,838.40
  6. Step 6: Final answer
    x = 246,478.80

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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.