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Finding the Fourth Proportional to 6,659,629.63, 9,190,288.89 and 3,603,843.88

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Solution

The fourth proportional to 6,659,629.63, 9,190,288.89 and 3,603,843.88 is: 4,973,304.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659,629.63 : 9,190,288.89 = 3,603,843.88 : x
  2. Step 2: Convert to fraction form
    6,659,629.63/9,190,288.89 = 3,603,843.88/x
  3. Step 3: Cross multiply
    6,659,629.63x = 9,190,288.89 × 3,603,843.88
  4. Step 4: Simplify right side
    6,659,629.63x = 33,120,366,325,707.05
  5. Step 5: Solve for x
    x = 33,120,366,325,707.05/6,659,629.63
  6. Step 6: Final answer
    x = 4,973,304.55

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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.