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Finding the Fourth Proportional to 572,725.44, 790,314.98 and 331,023.66

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Solution

The fourth proportional to 572,725.44, 790,314.98 and 331,023.66 is: 456,786.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,725.44 : 790,314.98 = 331,023.66 : x
  2. Step 2: Convert to fraction form
    572,725.44/790,314.98 = 331,023.66/x
  3. Step 3: Cross multiply
    572,725.44x = 790,314.98 × 331,023.66
  4. Step 4: Simplify right side
    572,725.44x = 261,612,960,035.77
  5. Step 5: Solve for x
    x = 261,612,960,035.77/572,725.44
  6. Step 6: Final answer
    x = 456,786.00

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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.