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Finding the Fourth Proportional to 574,399.92, 792,685.80 and 319,768.32

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Solution

The fourth proportional to 574,399.92, 792,685.80 and 319,768.32 is: 441,288.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,399.92 : 792,685.80 = 319,768.32 : x
  2. Step 2: Convert to fraction form
    574,399.92/792,685.80 = 319,768.32/x
  3. Step 3: Cross multiply
    574,399.92x = 792,685.80 × 319,768.32
  4. Step 4: Simplify right side
    574,399.92x = 253,475,806,553.86
  5. Step 5: Solve for x
    x = 253,475,806,553.86/574,399.92
  6. Step 6: Final answer
    x = 441,288.03

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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.