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Finding the Fourth Proportional to 479,660.56, 719,365.54 and 142,610.44

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Solution

The fourth proportional to 479,660.56, 719,365.54 and 142,610.44 is: 213,878.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,660.56 : 719,365.54 = 142,610.44 : x
  2. Step 2: Convert to fraction form
    479,660.56/719,365.54 = 142,610.44/x
  3. Step 3: Cross multiply
    479,660.56x = 719,365.54 × 142,610.44
  4. Step 4: Simplify right side
    479,660.56x = 102,589,036,180.24
  5. Step 5: Solve for x
    x = 102,589,036,180.24/479,660.56
  6. Step 6: Final answer
    x = 213,878.41

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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.