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Finding the Fourth Proportional to 479,208.52, 661,305.90 and 264,361.96

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Solution

The fourth proportional to 479,208.52, 661,305.90 and 264,361.96 is: 364,818.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,208.52 : 661,305.90 = 264,361.96 : x
  2. Step 2: Convert to fraction form
    479,208.52/661,305.90 = 264,361.96/x
  3. Step 3: Cross multiply
    479,208.52x = 661,305.90 × 264,361.96
  4. Step 4: Simplify right side
    479,208.52x = 174,824,123,883.56
  5. Step 5: Solve for x
    x = 174,824,123,883.56/479,208.52
  6. Step 6: Final answer
    x = 364,818.48

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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.