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Finding the Fourth Proportional to 2,839,489.80, 4,259,234.70 and 2,634,203.40

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Solution

The fourth proportional to 2,839,489.80, 4,259,234.70 and 2,634,203.40 is: 3,951,305.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839,489.80 : 4,259,234.70 = 2,634,203.40 : x
  2. Step 2: Convert to fraction form
    2,839,489.80/4,259,234.70 = 2,634,203.40/x
  3. Step 3: Cross multiply
    2,839,489.80x = 4,259,234.70 × 2,634,203.40
  4. Step 4: Simplify right side
    2,839,489.80x = 11,219,690,528,137.98
  5. Step 5: Solve for x
    x = 11,219,690,528,137.98/2,839,489.80
  6. Step 6: Final answer
    x = 3,951,305.10

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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.