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Finding the Fourth Proportional to 540,236.93, 810,863.87 and 274,188.38

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Solution

The fourth proportional to 540,236.93, 810,863.87 and 274,188.38 is: 411,540.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,236.93 : 810,863.87 = 274,188.38 : x
  2. Step 2: Convert to fraction form
    540,236.93/810,863.87 = 274,188.38/x
  3. Step 3: Cross multiply
    540,236.93x = 810,863.87 × 274,188.38
  4. Step 4: Simplify right side
    540,236.93x = 222,329,445,490.57
  5. Step 5: Solve for x
    x = 222,329,445,490.57/540,236.93
  6. Step 6: Final answer
    x = 411,540.63

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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.