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Finding the Fourth Proportional to 386,388.50, 533,034.69 and 273,273.62

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Solution

The fourth proportional to 386,388.50, 533,034.69 and 273,273.62 is: 376,989.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,388.50 : 533,034.69 = 273,273.62 : x
  2. Step 2: Convert to fraction form
    386,388.50/533,034.69 = 273,273.62/x
  3. Step 3: Cross multiply
    386,388.50x = 533,034.69 × 273,273.62
  4. Step 4: Simplify right side
    386,388.50x = 145,664,319,321.88
  5. Step 5: Solve for x
    x = 145,664,319,321.88/386,388.50
  6. Step 6: Final answer
    x = 376,989.27

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.