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Finding the Fourth Proportional to 3,266,678.47, 4,899,698.42 and 992,222.62

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Solution

The fourth proportional to 3,266,678.47, 4,899,698.42 and 992,222.62 is: 1,488,236.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,266,678.47 : 4,899,698.42 = 992,222.62 : x
  2. Step 2: Convert to fraction form
    3,266,678.47/4,899,698.42 = 992,222.62/x
  3. Step 3: Cross multiply
    3,266,678.47x = 4,899,698.42 × 992,222.62
  4. Step 4: Simplify right side
    3,266,678.47x = 4,861,591,591,873.15
  5. Step 5: Solve for x
    x = 4,861,591,591,873.15/3,266,678.47
  6. Step 6: Final answer
    x = 1,488,236.95

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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.