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Finding the Fourth Proportional to 500,855.88, 751,371.31 and 220,365.84

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Solution

The fourth proportional to 500,855.88, 751,371.31 and 220,365.84 is: 330,587.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,855.88 : 751,371.31 = 220,365.84 : x
  2. Step 2: Convert to fraction form
    500,855.88/751,371.31 = 220,365.84/x
  3. Step 3: Cross multiply
    500,855.88x = 751,371.31 × 220,365.84
  4. Step 4: Simplify right side
    500,855.88x = 165,576,572,973.15
  5. Step 5: Solve for x
    x = 165,576,572,973.15/500,855.88
  6. Step 6: Final answer
    x = 330,587.26

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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.