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Finding the Fourth Proportional to 267,631.44, 401,472 and 191,015.16

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Solution

The fourth proportional to 267,631.44, 401,472 and 191,015.16 is: 286,540.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,631.44 : 401,472 = 191,015.16 : x
  2. Step 2: Convert to fraction form
    267,631.44/401,472 = 191,015.16/x
  3. Step 3: Cross multiply
    267,631.44x = 401,472 × 191,015.16
  4. Step 4: Simplify right side
    267,631.44x = 76,687,238,315.52
  5. Step 5: Solve for x
    x = 76,687,238,315.52/267,631.44
  6. Step 6: Final answer
    x = 286,540.47

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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.