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Finding the Fourth Proportional to 618,565.98, 927,994.23 and 192,079.79

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Solution

The fourth proportional to 618,565.98, 927,994.23 and 192,079.79 is: 288,164.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,565.98 : 927,994.23 = 192,079.79 : x
  2. Step 2: Convert to fraction form
    618,565.98/927,994.23 = 192,079.79/x
  3. Step 3: Cross multiply
    618,565.98x = 927,994.23 × 192,079.79
  4. Step 4: Simplify right side
    618,565.98x = 178,248,936,819.61
  5. Step 5: Solve for x
    x = 178,248,936,819.61/618,565.98
  6. Step 6: Final answer
    x = 288,164.79

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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.