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Finding the Fourth Proportional to 3,876,491.39, 5,815,567.94 and 1,181,033.87

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Solution

The fourth proportional to 3,876,491.39, 5,815,567.94 and 1,181,033.87 is: 1,771,803.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876,491.39 : 5,815,567.94 = 1,181,033.87 : x
  2. Step 2: Convert to fraction form
    3,876,491.39/5,815,567.94 = 1,181,033.87/x
  3. Step 3: Cross multiply
    3,876,491.39x = 5,815,567.94 × 1,181,033.87
  4. Step 4: Simplify right side
    3,876,491.39x = 6,868,382,675,443.12
  5. Step 5: Solve for x
    x = 6,868,382,675,443.12/3,876,491.39
  6. Step 6: Final answer
    x = 1,771,803.93

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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.