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Finding the Fourth Proportional to 573,940.96, 792,037.92 and 319,286.68

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Solution

The fourth proportional to 573,940.96, 792,037.92 and 319,286.68 is: 440,615.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,940.96 : 792,037.92 = 319,286.68 : x
  2. Step 2: Convert to fraction form
    573,940.96/792,037.92 = 319,286.68/x
  3. Step 3: Cross multiply
    573,940.96x = 792,037.92 × 319,286.68
  4. Step 4: Simplify right side
    573,940.96x = 252,887,157,910.91
  5. Step 5: Solve for x
    x = 252,887,157,910.91/573,940.96
  6. Step 6: Final answer
    x = 440,615.28

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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.