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Finding the Fourth Proportional to 493,571.62, 681,125.76 and 267,215.50

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Solution

The fourth proportional to 493,571.62, 681,125.76 and 267,215.50 is: 368,755.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,571.62 : 681,125.76 = 267,215.50 : x
  2. Step 2: Convert to fraction form
    493,571.62/681,125.76 = 267,215.50/x
  3. Step 3: Cross multiply
    493,571.62x = 681,125.76 × 267,215.50
  4. Step 4: Simplify right side
    493,571.62x = 182,007,360,521.28
  5. Step 5: Solve for x
    x = 182,007,360,521.28/493,571.62
  6. Step 6: Final answer
    x = 368,755.72

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Why These Related Problems?

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