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Finding the Fourth Proportional to 395,590.20, 593,579.70 and 185,191.80

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Solution

The fourth proportional to 395,590.20, 593,579.70 and 185,191.80 is: 277,878.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,590.20 : 593,579.70 = 185,191.80 : x
  2. Step 2: Convert to fraction form
    395,590.20/593,579.70 = 185,191.80/x
  3. Step 3: Cross multiply
    395,590.20x = 593,579.70 × 185,191.80
  4. Step 4: Simplify right side
    395,590.20x = 109,926,093,086.46
  5. Step 5: Solve for x
    x = 109,926,093,086.46/395,590.20
  6. Step 6: Final answer
    x = 277,878.71

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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.