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Finding the Fourth Proportional to 3,990,703.05, 5,986,054.58 and 2,395,067.85

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Solution

The fourth proportional to 3,990,703.05, 5,986,054.58 and 2,395,067.85 is: 3,592,601.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,703.05 : 5,986,054.58 = 2,395,067.85 : x
  2. Step 2: Convert to fraction form
    3,990,703.05/5,986,054.58 = 2,395,067.85/x
  3. Step 3: Cross multiply
    3,990,703.05x = 5,986,054.58 × 2,395,067.85
  4. Step 4: Simplify right side
    3,990,703.05x = 14,337,006,860,927.91
  5. Step 5: Solve for x
    x = 14,337,006,860,927.91/3,990,703.05
  6. Step 6: Final answer
    x = 3,592,601.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.