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Finding the Fourth Proportional to 444,865.30, 667,297.95 and 418,621.30

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Solution

The fourth proportional to 444,865.30, 667,297.95 and 418,621.30 is: 627,931.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,865.30 : 667,297.95 = 418,621.30 : x
  2. Step 2: Convert to fraction form
    444,865.30/667,297.95 = 418,621.30/x
  3. Step 3: Cross multiply
    444,865.30x = 667,297.95 × 418,621.30
  4. Step 4: Simplify right side
    444,865.30x = 279,345,135,316.34
  5. Step 5: Solve for x
    x = 279,345,135,316.34/444,865.30
  6. Step 6: Final answer
    x = 627,931.95

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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.