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Finding the Fourth Proportional to 6,461,998.86, 8,917,194.70 and 3,561,380.58

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Solution

The fourth proportional to 6,461,998.86, 8,917,194.70 and 3,561,380.58 is: 4,914,504.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,461,998.86 : 8,917,194.70 = 3,561,380.58 : x
  2. Step 2: Convert to fraction form
    6,461,998.86/8,917,194.70 = 3,561,380.58/x
  3. Step 3: Cross multiply
    6,461,998.86x = 8,917,194.70 × 3,561,380.58
  4. Step 4: Simplify right side
    6,461,998.86x = 31,757,524,032,658.93
  5. Step 5: Solve for x
    x = 31,757,524,032,658.93/6,461,998.86
  6. Step 6: Final answer
    x = 4,914,504.74

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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.