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Finding the Fourth Proportional to 552,701.20, 829,489.20 and 215,903.20

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Solution

The fourth proportional to 552,701.20, 829,489.20 and 215,903.20 is: 324,025.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,701.20 : 829,489.20 = 215,903.20 : x
  2. Step 2: Convert to fraction form
    552,701.20/829,489.20 = 215,903.20/x
  3. Step 3: Cross multiply
    552,701.20x = 829,489.20 × 215,903.20
  4. Step 4: Simplify right side
    552,701.20x = 179,089,372,645.44
  5. Step 5: Solve for x
    x = 179,089,372,645.44/552,701.20
  6. Step 6: Final answer
    x = 324,025.66

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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.