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Finding the Fourth Proportional to 436,511.81, 653,499.92 and 267,520.95

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Solution

The fourth proportional to 436,511.81, 653,499.92 and 267,520.95 is: 400,504.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,511.81 : 653,499.92 = 267,520.95 : x
  2. Step 2: Convert to fraction form
    436,511.81/653,499.92 = 267,520.95/x
  3. Step 3: Cross multiply
    436,511.81x = 653,499.92 × 267,520.95
  4. Step 4: Simplify right side
    436,511.81x = 174,824,920,092.13
  5. Step 5: Solve for x
    x = 174,824,920,092.13/436,511.81
  6. Step 6: Final answer
    x = 400,504.44

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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.