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Finding the Fourth Proportional to 552,579.72, 762,561.18 and 326,239.80

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Solution

The fourth proportional to 552,579.72, 762,561.18 and 326,239.80 is: 450,211.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,579.72 : 762,561.18 = 326,239.80 : x
  2. Step 2: Convert to fraction form
    552,579.72/762,561.18 = 326,239.80/x
  3. Step 3: Cross multiply
    552,579.72x = 762,561.18 × 326,239.80
  4. Step 4: Simplify right side
    552,579.72x = 248,777,806,850.96
  5. Step 5: Solve for x
    x = 248,777,806,850.96/552,579.72
  6. Step 6: Final answer
    x = 450,211.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.