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Finding the Fourth Proportional to 484,963.92, 669,240.72 and 331,998.24

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Solution

The fourth proportional to 484,963.92, 669,240.72 and 331,998.24 is: 458,151.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,963.92 : 669,240.72 = 331,998.24 : x
  2. Step 2: Convert to fraction form
    484,963.92/669,240.72 = 331,998.24/x
  3. Step 3: Cross multiply
    484,963.92x = 669,240.72 × 331,998.24
  4. Step 4: Simplify right side
    484,963.92x = 222,186,741,176.33
  5. Step 5: Solve for x
    x = 222,186,741,176.33/484,963.92
  6. Step 6: Final answer
    x = 458,151.07

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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.