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Finding the Fourth Proportional to 572,891.26, 790,561.60 and 331,150.81

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Solution

The fourth proportional to 572,891.26, 790,561.60 and 331,150.81 is: 456,971.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,891.26 : 790,561.60 = 331,150.81 : x
  2. Step 2: Convert to fraction form
    572,891.26/790,561.60 = 331,150.81/x
  3. Step 3: Cross multiply
    572,891.26x = 790,561.60 × 331,150.81
  4. Step 4: Simplify right side
    572,891.26x = 261,795,114,194.90
  5. Step 5: Solve for x
    x = 261,795,114,194.90/572,891.26
  6. Step 6: Final answer
    x = 456,971.74

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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.