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Finding the Fourth Proportional to 267,632.36, 401,396.70 and 254,311.40

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Solution

The fourth proportional to 267,632.36, 401,396.70 and 254,311.40 is: 381,417.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,632.36 : 401,396.70 = 254,311.40 : x
  2. Step 2: Convert to fraction form
    267,632.36/401,396.70 = 254,311.40/x
  3. Step 3: Cross multiply
    267,632.36x = 401,396.70 × 254,311.40
  4. Step 4: Simplify right side
    267,632.36x = 102,079,756,732.38
  5. Step 5: Solve for x
    x = 102,079,756,732.38/267,632.36
  6. Step 6: Final answer
    x = 381,417.84

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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.