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Finding the Fourth Proportional to 3,863,559.12, 5,795,339.12 and 1,339,214.40

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Solution

The fourth proportional to 3,863,559.12, 5,795,339.12 and 1,339,214.40 is: 2,008,821.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863,559.12 : 5,795,339.12 = 1,339,214.40 : x
  2. Step 2: Convert to fraction form
    3,863,559.12/5,795,339.12 = 1,339,214.40/x
  3. Step 3: Cross multiply
    3,863,559.12x = 5,795,339.12 × 1,339,214.40
  4. Step 4: Simplify right side
    3,863,559.12x = 7,761,201,602,387.33
  5. Step 5: Solve for x
    x = 7,761,201,602,387.33/3,863,559.12
  6. Step 6: Final answer
    x = 2,008,821.75

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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.