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Finding the Fourth Proportional to 468,621.85, 646,696.99 and 253,761.90

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Solution

The fourth proportional to 468,621.85, 646,696.99 and 253,761.90 is: 350,190.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,621.85 : 646,696.99 = 253,761.90 : x
  2. Step 2: Convert to fraction form
    468,621.85/646,696.99 = 253,761.90/x
  3. Step 3: Cross multiply
    468,621.85x = 646,696.99 × 253,761.90
  4. Step 4: Simplify right side
    468,621.85x = 164,107,056,906.68
  5. Step 5: Solve for x
    x = 164,107,056,906.68/468,621.85
  6. Step 6: Final answer
    x = 350,190.79

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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.