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Finding the Fourth Proportional to 523,250.44, 721,998.70 and 308,361.32

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Solution

The fourth proportional to 523,250.44, 721,998.70 and 308,361.32 is: 425,487.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,250.44 : 721,998.70 = 308,361.32 : x
  2. Step 2: Convert to fraction form
    523,250.44/721,998.70 = 308,361.32/x
  3. Step 3: Cross multiply
    523,250.44x = 721,998.70 × 308,361.32
  4. Step 4: Simplify right side
    523,250.44x = 222,636,472,170.28
  5. Step 5: Solve for x
    x = 222,636,472,170.28/523,250.44
  6. Step 6: Final answer
    x = 425,487.41

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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.