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Finding the Fourth Proportional to 345,620.43, 477,046.41 and 225,092.43

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Solution

The fourth proportional to 345,620.43, 477,046.41 and 225,092.43 is: 310,686.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,620.43 : 477,046.41 = 225,092.43 : x
  2. Step 2: Convert to fraction form
    345,620.43/477,046.41 = 225,092.43/x
  3. Step 3: Cross multiply
    345,620.43x = 477,046.41 × 225,092.43
  4. Step 4: Simplify right side
    345,620.43x = 107,379,535,649.68
  5. Step 5: Solve for x
    x = 107,379,535,649.68/345,620.43
  6. Step 6: Final answer
    x = 310,686.31

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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.