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Finding the Fourth Proportional to 479,940.43, 662,313.86 and 262,149.25

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Solution

The fourth proportional to 479,940.43, 662,313.86 and 262,149.25 is: 361,763.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,940.43 : 662,313.86 = 262,149.25 : x
  2. Step 2: Convert to fraction form
    479,940.43/662,313.86 = 262,149.25/x
  3. Step 3: Cross multiply
    479,940.43x = 662,313.86 × 262,149.25
  4. Step 4: Simplify right side
    479,940.43x = 173,625,081,663.61
  5. Step 5: Solve for x
    x = 173,625,081,663.61/479,940.43
  6. Step 6: Final answer
    x = 361,763.82

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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.