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Finding the Fourth Proportional to 267,367.64, 401,247.48 and 215,404.52

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Solution

The fourth proportional to 267,367.64, 401,247.48 and 215,404.52 is: 323,264.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,367.64 : 401,247.48 = 215,404.52 : x
  2. Step 2: Convert to fraction form
    267,367.64/401,247.48 = 215,404.52/x
  3. Step 3: Cross multiply
    267,367.64x = 401,247.48 × 215,404.52
  4. Step 4: Simplify right side
    267,367.64x = 86,430,520,830.61
  5. Step 5: Solve for x
    x = 86,430,520,830.61/267,367.64
  6. Step 6: Final answer
    x = 323,264.70

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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.