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Finding the Fourth Proportional to 527,234.10, 790,687.72 and 190,231.08

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Solution

The fourth proportional to 527,234.10, 790,687.72 and 190,231.08 is: 285,287.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,234.10 : 790,687.72 = 190,231.08 : x
  2. Step 2: Convert to fraction form
    527,234.10/790,687.72 = 190,231.08/x
  3. Step 3: Cross multiply
    527,234.10x = 790,687.72 × 190,231.08
  4. Step 4: Simplify right side
    527,234.10x = 150,413,378,918.34
  5. Step 5: Solve for x
    x = 150,413,378,918.34/527,234.10
  6. Step 6: Final answer
    x = 285,287.65

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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.