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Finding the Fourth Proportional to 580,208.22, 800,423.64 and 376,310.52

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Solution

The fourth proportional to 580,208.22, 800,423.64 and 376,310.52 is: 519,137.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,208.22 : 800,423.64 = 376,310.52 : x
  2. Step 2: Convert to fraction form
    580,208.22/800,423.64 = 376,310.52/x
  3. Step 3: Cross multiply
    580,208.22x = 800,423.64 × 376,310.52
  4. Step 4: Simplify right side
    580,208.22x = 301,207,836,188.69
  5. Step 5: Solve for x
    x = 301,207,836,188.69/580,208.22
  6. Step 6: Final answer
    x = 519,137.49

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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.