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Finding the Fourth Proportional to 468,933.87, 647,127.86 and 254,079.75

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Solution

The fourth proportional to 468,933.87, 647,127.86 and 254,079.75 is: 350,629.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,933.87 : 647,127.86 = 254,079.75 : x
  2. Step 2: Convert to fraction form
    468,933.87/647,127.86 = 254,079.75/x
  3. Step 3: Cross multiply
    468,933.87x = 647,127.86 × 254,079.75
  4. Step 4: Simplify right side
    468,933.87x = 164,422,083,616.44
  5. Step 5: Solve for x
    x = 164,422,083,616.44/468,933.87
  6. Step 6: Final answer
    x = 350,629.58

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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.