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Finding the Fourth Proportional to 694,447.69, 958,665.47 and 522,431.31

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Solution

The fourth proportional to 694,447.69, 958,665.47 and 522,431.31 is: 721,201.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,447.69 : 958,665.47 = 522,431.31 : x
  2. Step 2: Convert to fraction form
    694,447.69/958,665.47 = 522,431.31/x
  3. Step 3: Cross multiply
    694,447.69x = 958,665.47 × 522,431.31
  4. Step 4: Simplify right side
    694,447.69x = 500,836,857,099.80
  5. Step 5: Solve for x
    x = 500,836,857,099.80/694,447.69
  6. Step 6: Final answer
    x = 721,201.71

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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.