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Finding the Fourth Proportional to 572,968.82, 790,650.69 and 331,266.97

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Solution

The fourth proportional to 572,968.82, 790,650.69 and 331,266.97 is: 457,121.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,968.82 : 790,650.69 = 331,266.97 : x
  2. Step 2: Convert to fraction form
    572,968.82/790,650.69 = 331,266.97/x
  3. Step 3: Cross multiply
    572,968.82x = 790,650.69 × 331,266.97
  4. Step 4: Simplify right side
    572,968.82x = 261,916,458,150.77
  5. Step 5: Solve for x
    x = 261,916,458,150.77/572,968.82
  6. Step 6: Final answer
    x = 457,121.66

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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.