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Finding the Fourth Proportional to 501,682.56, 751,930.56 and 220,611.84

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Solution

The fourth proportional to 501,682.56, 751,930.56 and 220,611.84 is: 330,656.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,682.56 : 751,930.56 = 220,611.84 : x
  2. Step 2: Convert to fraction form
    501,682.56/751,930.56 = 220,611.84/x
  3. Step 3: Cross multiply
    501,682.56x = 751,930.56 × 220,611.84
  4. Step 4: Simplify right side
    501,682.56x = 165,884,784,393.83
  5. Step 5: Solve for x
    x = 165,884,784,393.83/501,682.56
  6. Step 6: Final answer
    x = 330,656.87

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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.