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Finding the Fourth Proportional to 527,279.76, 790,671.06 and 190,276.38

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Solution

The fourth proportional to 527,279.76, 790,671.06 and 190,276.38 is: 285,324.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,279.76 : 790,671.06 = 190,276.38 : x
  2. Step 2: Convert to fraction form
    527,279.76/790,671.06 = 190,276.38/x
  3. Step 3: Cross multiply
    527,279.76x = 790,671.06 × 190,276.38
  4. Step 4: Simplify right side
    527,279.76x = 150,446,027,067.56
  5. Step 5: Solve for x
    x = 150,446,027,067.56/527,279.76
  6. Step 6: Final answer
    x = 285,324.87

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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.