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Finding the Fourth Proportional to 447,352.88, 617,143.52 and 265,961.90

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Solution

The fourth proportional to 447,352.88, 617,143.52 and 265,961.90 is: 366,906.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,352.88 : 617,143.52 = 265,961.90 : x
  2. Step 2: Convert to fraction form
    447,352.88/617,143.52 = 265,961.90/x
  3. Step 3: Cross multiply
    447,352.88x = 617,143.52 × 265,961.90
  4. Step 4: Simplify right side
    447,352.88x = 164,136,663,151.89
  5. Step 5: Solve for x
    x = 164,136,663,151.89/447,352.88
  6. Step 6: Final answer
    x = 366,906.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.