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Finding the Fourth Proportional to 872,879.88, 1,203,890.31 and 597,400.68

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Solution

The fourth proportional to 872,879.88, 1,203,890.31 and 597,400.68 is: 823,944.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,879.88 : 1,203,890.31 = 597,400.68 : x
  2. Step 2: Convert to fraction form
    872,879.88/1,203,890.31 = 597,400.68/x
  3. Step 3: Cross multiply
    872,879.88x = 1,203,890.31 × 597,400.68
  4. Step 4: Simplify right side
    872,879.88x = 719,204,889,839.41
  5. Step 5: Solve for x
    x = 719,204,889,839.41/872,879.88
  6. Step 6: Final answer
    x = 823,944.86

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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.