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Finding the Fourth Proportional to 677,540.80, 934,999.91 and 371,610.94

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Solution

The fourth proportional to 677,540.80, 934,999.91 and 371,610.94 is: 512,819.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,540.80 : 934,999.91 = 371,610.94 : x
  2. Step 2: Convert to fraction form
    677,540.80/934,999.91 = 371,610.94/x
  3. Step 3: Cross multiply
    677,540.80x = 934,999.91 × 371,610.94
  4. Step 4: Simplify right side
    677,540.80x = 347,456,194,406.13
  5. Step 5: Solve for x
    x = 347,456,194,406.13/677,540.80
  6. Step 6: Final answer
    x = 512,819.59

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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.