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Finding the Fourth Proportional to 267,494.40, 400,658.40 and 220,838.40

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Solution

The fourth proportional to 267,494.40, 400,658.40 and 220,838.40 is: 330,776.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,494.40 : 400,658.40 = 220,838.40 : x
  2. Step 2: Convert to fraction form
    267,494.40/400,658.40 = 220,838.40/x
  3. Step 3: Cross multiply
    267,494.40x = 400,658.40 × 220,838.40
  4. Step 4: Simplify right side
    267,494.40x = 88,480,760,002.56
  5. Step 5: Solve for x
    x = 88,480,760,002.56/267,494.40
  6. Step 6: Final answer
    x = 330,776.12

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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.