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Finding the Fourth Proportional to 5,787,297.52, 7,986,456.84 and 3,208,912

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Solution

The fourth proportional to 5,787,297.52, 7,986,456.84 and 3,208,912 is: 4,428,290.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787,297.52 : 7,986,456.84 = 3,208,912 : x
  2. Step 2: Convert to fraction form
    5,787,297.52/7,986,456.84 = 3,208,912/x
  3. Step 3: Cross multiply
    5,787,297.52x = 7,986,456.84 × 3,208,912
  4. Step 4: Simplify right side
    5,787,297.52x = 25,627,837,191,358.08
  5. Step 5: Solve for x
    x = 25,627,837,191,358.08/5,787,297.52
  6. Step 6: Final answer
    x = 4,428,290.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.