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Finding the Fourth Proportional to 538,608.44, 743,245.70 and 296,877.64

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Solution

The fourth proportional to 538,608.44, 743,245.70 and 296,877.64 is: 409,672.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,608.44 : 743,245.70 = 296,877.64 : x
  2. Step 2: Convert to fraction form
    538,608.44/743,245.70 = 296,877.64/x
  3. Step 3: Cross multiply
    538,608.44x = 743,245.70 × 296,877.64
  4. Step 4: Simplify right side
    538,608.44x = 220,653,029,356.15
  5. Step 5: Solve for x
    x = 220,653,029,356.15/538,608.44
  6. Step 6: Final answer
    x = 409,672.43

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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.