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Finding the Fourth Proportional to 2,819,878.11, 4,229,981.60 and 797,952.87

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Solution

The fourth proportional to 2,819,878.11, 4,229,981.60 and 797,952.87 is: 1,196,975.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819,878.11 : 4,229,981.60 = 797,952.87 : x
  2. Step 2: Convert to fraction form
    2,819,878.11/4,229,981.60 = 797,952.87/x
  3. Step 3: Cross multiply
    2,819,878.11x = 4,229,981.60 × 797,952.87
  4. Step 4: Simplify right side
    2,819,878.11x = 3,375,325,953,777.43
  5. Step 5: Solve for x
    x = 3,375,325,953,777.43/2,819,878.11
  6. Step 6: Final answer
    x = 1,196,975.83

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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.