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Finding the Fourth Proportional to 572,843.41, 790,419.67 and 331,037.35

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Solution

The fourth proportional to 572,843.41, 790,419.67 and 331,037.35 is: 456,771.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,843.41 : 790,419.67 = 331,037.35 : x
  2. Step 2: Convert to fraction form
    572,843.41/790,419.67 = 331,037.35/x
  3. Step 3: Cross multiply
    572,843.41x = 790,419.67 × 331,037.35
  4. Step 4: Simplify right side
    572,843.41x = 261,658,432,944.68
  5. Step 5: Solve for x
    x = 261,658,432,944.68/572,843.41
  6. Step 6: Final answer
    x = 456,771.31

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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.