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Finding the Fourth Proportional to 6,425,608.90, 8,867,287.81 and 3,485,418.66

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Solution

The fourth proportional to 6,425,608.90, 8,867,287.81 and 3,485,418.66 is: 4,809,849.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,425,608.90 : 8,867,287.81 = 3,485,418.66 : x
  2. Step 2: Convert to fraction form
    6,425,608.90/8,867,287.81 = 3,485,418.66/x
  3. Step 3: Cross multiply
    6,425,608.90x = 8,867,287.81 × 3,485,418.66
  4. Step 4: Simplify right side
    6,425,608.90x = 30,906,210,334,801
  5. Step 5: Solve for x
    x = 30,906,210,334,801/6,425,608.90
  6. Step 6: Final answer
    x = 4,809,849.28

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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.