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Finding the Fourth Proportional to 469,161.59, 703,634.45 and 279,675.45

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Solution

The fourth proportional to 469,161.59, 703,634.45 and 279,675.45 is: 419,448.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,161.59 : 703,634.45 = 279,675.45 : x
  2. Step 2: Convert to fraction form
    469,161.59/703,634.45 = 279,675.45/x
  3. Step 3: Cross multiply
    469,161.59x = 703,634.45 × 279,675.45
  4. Step 4: Simplify right side
    469,161.59x = 196,789,280,040.88
  5. Step 5: Solve for x
    x = 196,789,280,040.88/469,161.59
  6. Step 6: Final answer
    x = 419,448.83

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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.