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Finding the Fourth Proportional to 572,851.98, 790,447.82 and 331,087.64

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Solution

The fourth proportional to 572,851.98, 790,447.82 and 331,087.64 is: 456,850.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,851.98 : 790,447.82 = 331,087.64 : x
  2. Step 2: Convert to fraction form
    572,851.98/790,447.82 = 331,087.64/x
  3. Step 3: Cross multiply
    572,851.98x = 790,447.82 × 331,087.64
  4. Step 4: Simplify right side
    572,851.98x = 261,707,497,659.27
  5. Step 5: Solve for x
    x = 261,707,497,659.27/572,851.98
  6. Step 6: Final answer
    x = 456,850.12

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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.