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Finding the Fourth Proportional to 580,209.22, 800,425.02 and 376,311.52

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Solution

The fourth proportional to 580,209.22, 800,425.02 and 376,311.52 is: 519,138.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,209.22 : 800,425.02 = 376,311.52 : x
  2. Step 2: Convert to fraction form
    580,209.22/800,425.02 = 376,311.52/x
  3. Step 3: Cross multiply
    580,209.22x = 800,425.02 × 376,311.52
  4. Step 4: Simplify right side
    580,209.22x = 301,209,155,922.23
  5. Step 5: Solve for x
    x = 301,209,155,922.23/580,209.22
  6. Step 6: Final answer
    x = 519,138.86

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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.