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Finding the Fourth Proportional to 538,910.54, 806,750.87 and 519,747.86

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Solution

The fourth proportional to 538,910.54, 806,750.87 and 519,747.86 is: 778,064.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,910.54 : 806,750.87 = 519,747.86 : x
  2. Step 2: Convert to fraction form
    538,910.54/806,750.87 = 519,747.86/x
  3. Step 3: Cross multiply
    538,910.54x = 806,750.87 × 519,747.86
  4. Step 4: Simplify right side
    538,910.54x = 419,307,031,603.15
  5. Step 5: Solve for x
    x = 419,307,031,603.15/538,910.54
  6. Step 6: Final answer
    x = 778,064.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.