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Finding the Fourth Proportional to 469,908.62, 648,474.38 and 255,048.73

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Solution

The fourth proportional to 469,908.62, 648,474.38 and 255,048.73 is: 351,967.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,908.62 : 648,474.38 = 255,048.73 : x
  2. Step 2: Convert to fraction form
    469,908.62/648,474.38 = 255,048.73/x
  3. Step 3: Cross multiply
    469,908.62x = 648,474.38 × 255,048.73
  4. Step 4: Simplify right side
    469,908.62x = 165,392,569,481.53
  5. Step 5: Solve for x
    x = 165,392,569,481.53/469,908.62
  6. Step 6: Final answer
    x = 351,967.51

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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.