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Finding the Fourth Proportional to 444,864.30, 667,296.45 and 418,620.30

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Solution

The fourth proportional to 444,864.30, 667,296.45 and 418,620.30 is: 627,930.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,864.30 : 667,296.45 = 418,620.30 : x
  2. Step 2: Convert to fraction form
    444,864.30/667,296.45 = 418,620.30/x
  3. Step 3: Cross multiply
    444,864.30x = 667,296.45 × 418,620.30
  4. Step 4: Simplify right side
    444,864.30x = 279,343,840,087.94
  5. Step 5: Solve for x
    x = 279,343,840,087.94/444,864.30
  6. Step 6: Final answer
    x = 627,930.45

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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.