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Finding the Fourth Proportional to 4,687,504.86, 7,031,910.87 and 1,449,306.90

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Solution

The fourth proportional to 4,687,504.86, 7,031,910.87 and 1,449,306.90 is: 2,174,162.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687,504.86 : 7,031,910.87 = 1,449,306.90 : x
  2. Step 2: Convert to fraction form
    4,687,504.86/7,031,910.87 = 1,449,306.90/x
  3. Step 3: Cross multiply
    4,687,504.86x = 7,031,910.87 × 1,449,306.90
  4. Step 4: Simplify right side
    4,687,504.86x = 10,191,396,944,076.00
  5. Step 5: Solve for x
    x = 10,191,396,944,076.00/4,687,504.86
  6. Step 6: Final answer
    x = 2,174,162.43

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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.