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Finding the Fourth Proportional to 469,664.73, 648,138.71 and 254,806.56

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Solution

The fourth proportional to 469,664.73, 648,138.71 and 254,806.56 is: 351,633.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,664.73 : 648,138.71 = 254,806.56 : x
  2. Step 2: Convert to fraction form
    469,664.73/648,138.71 = 254,806.56/x
  3. Step 3: Cross multiply
    469,664.73x = 648,138.71 × 254,806.56
  4. Step 4: Simplify right side
    469,664.73x = 165,149,995,734.95
  5. Step 5: Solve for x
    x = 165,149,995,734.95/469,664.73
  6. Step 6: Final answer
    x = 351,633.80

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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.