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Finding the Fourth Proportional to 499,342.56, 748,361.52 and 229,372.80

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Solution

The fourth proportional to 499,342.56, 748,361.52 and 229,372.80 is: 343,759.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,342.56 : 748,361.52 = 229,372.80 : x
  2. Step 2: Convert to fraction form
    499,342.56/748,361.52 = 229,372.80/x
  3. Step 3: Cross multiply
    499,342.56x = 748,361.52 × 229,372.80
  4. Step 4: Simplify right side
    499,342.56x = 171,653,777,254.66
  5. Step 5: Solve for x
    x = 171,653,777,254.66/499,342.56
  6. Step 6: Final answer
    x = 343,759.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.