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Finding the Fourth Proportional to 572,990.43, 858,951.46 and 193,645.92

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Solution

The fourth proportional to 572,990.43, 858,951.46 and 193,645.92 is: 290,288.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,990.43 : 858,951.46 = 193,645.92 : x
  2. Step 2: Convert to fraction form
    572,990.43/858,951.46 = 193,645.92/x
  3. Step 3: Cross multiply
    572,990.43x = 858,951.46 × 193,645.92
  4. Step 4: Simplify right side
    572,990.43x = 166,332,443,249.31
  5. Step 5: Solve for x
    x = 166,332,443,249.31/572,990.43
  6. Step 6: Final answer
    x = 290,288.34

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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.