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Finding the Fourth Proportional to 444,921.20, 667,381.80 and 360,940.40

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Solution

The fourth proportional to 444,921.20, 667,381.80 and 360,940.40 is: 541,410.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,921.20 : 667,381.80 = 360,940.40 : x
  2. Step 2: Convert to fraction form
    444,921.20/667,381.80 = 360,940.40/x
  3. Step 3: Cross multiply
    444,921.20x = 667,381.80 × 360,940.40
  4. Step 4: Simplify right side
    444,921.20x = 240,885,053,844.72
  5. Step 5: Solve for x
    x = 240,885,053,844.72/444,921.20
  6. Step 6: Final answer
    x = 541,410.60

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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.