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Finding the Fourth Proportional to 6,410,247.78, 8,845,791.55 and 3,509,077.46

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Solution

The fourth proportional to 6,410,247.78, 8,845,791.55 and 3,509,077.46 is: 4,842,335.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,410,247.78 : 8,845,791.55 = 3,509,077.46 : x
  2. Step 2: Convert to fraction form
    6,410,247.78/8,845,791.55 = 3,509,077.46/x
  3. Step 3: Cross multiply
    6,410,247.78x = 8,845,791.55 × 3,509,077.46
  4. Step 4: Simplify right side
    6,410,247.78x = 31,040,567,726,418.07
  5. Step 5: Solve for x
    x = 31,040,567,726,418.07/6,410,247.78
  6. Step 6: Final answer
    x = 4,842,335.08

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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.