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Finding the Fourth Proportional to 1,647,968,275.00, 2,274,391,183.75 and 978,915,963.23

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Solution

The fourth proportional to 1,647,968,275.00, 2,274,391,183.75 and 978,915,963.23 is: 1,351,019,840.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647,968,275.00 : 2,274,391,183.75 = 978,915,963.23 : x
  2. Step 2: Convert to fraction form
    1,647,968,275.00/2,274,391,183.75 = 978,915,963.23/x
  3. Step 3: Cross multiply
    1,647,968,275.00x = 2,274,391,183.75 × 978,915,963.23
  4. Step 4: Simplify right side
    1,647,968,275.00x = 2,226,437,836,397,160,704
  5. Step 5: Solve for x
    x = 2,226,437,836,397,160,704/1,647,968,275.00
  6. Step 6: Final answer
    x = 1,351,019,840.72

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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.