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Finding the Fourth Proportional to 444,439.33, 666,724.62 and 128,855.23

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Solution

The fourth proportional to 444,439.33, 666,724.62 and 128,855.23 is: 193,301.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,439.33 : 666,724.62 = 128,855.23 : x
  2. Step 2: Convert to fraction form
    444,439.33/666,724.62 = 128,855.23/x
  3. Step 3: Cross multiply
    444,439.33x = 666,724.62 × 128,855.23
  4. Step 4: Simplify right side
    444,439.33x = 85,910,954,256.76
  5. Step 5: Solve for x
    x = 85,910,954,256.76/444,439.33
  6. Step 6: Final answer
    x = 193,301.87

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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.