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Finding the Fourth Proportional to 496,361.88, 744,096.78 and 196,640.28

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Solution

The fourth proportional to 496,361.88, 744,096.78 and 196,640.28 is: 294,783.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,361.88 : 744,096.78 = 196,640.28 : x
  2. Step 2: Convert to fraction form
    496,361.88/744,096.78 = 196,640.28/x
  3. Step 3: Cross multiply
    496,361.88x = 744,096.78 × 196,640.28
  4. Step 4: Simplify right side
    496,361.88x = 146,319,399,166.30
  5. Step 5: Solve for x
    x = 146,319,399,166.30/496,361.88
  6. Step 6: Final answer
    x = 294,783.72

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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.