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Finding the Fourth Proportional to 444,856.80, 667,285.20 and 440,709.60

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Solution

The fourth proportional to 444,856.80, 667,285.20 and 440,709.60 is: 661,064.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,856.80 : 667,285.20 = 440,709.60 : x
  2. Step 2: Convert to fraction form
    444,856.80/667,285.20 = 440,709.60/x
  3. Step 3: Cross multiply
    444,856.80x = 667,285.20 × 440,709.60
  4. Step 4: Simplify right side
    444,856.80x = 294,078,993,577.92
  5. Step 5: Solve for x
    x = 294,078,993,577.92/444,856.80
  6. Step 6: Final answer
    x = 661,064.40

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Similar ratio
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1.5x scale

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.