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Finding the Fourth Proportional to 368,489.72, 552,734.58 and 203,327.48

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Solution

The fourth proportional to 368,489.72, 552,734.58 and 203,327.48 is: 304,991.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,489.72 : 552,734.58 = 203,327.48 : x
  2. Step 2: Convert to fraction form
    368,489.72/552,734.58 = 203,327.48/x
  3. Step 3: Cross multiply
    368,489.72x = 552,734.58 × 203,327.48
  4. Step 4: Simplify right side
    368,489.72x = 112,386,129,260.26
  5. Step 5: Solve for x
    x = 112,386,129,260.26/368,489.72
  6. Step 6: Final answer
    x = 304,991.22

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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.