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Finding the Fourth Proportional to 492,867.33, 738,951.56 and 219,163.93

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Solution

The fourth proportional to 492,867.33, 738,951.56 and 219,163.93 is: 328,590.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,867.33 : 738,951.56 = 219,163.93 : x
  2. Step 2: Convert to fraction form
    492,867.33/738,951.56 = 219,163.93/x
  3. Step 3: Cross multiply
    492,867.33x = 738,951.56 × 219,163.93
  4. Step 4: Simplify right side
    492,867.33x = 161,951,525,847.90
  5. Step 5: Solve for x
    x = 161,951,525,847.90/492,867.33
  6. Step 6: Final answer
    x = 328,590.51

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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.