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Finding the Fourth Proportional to 501,489.18, 692,067.24 and 275,134.68

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Solution

The fourth proportional to 501,489.18, 692,067.24 and 275,134.68 is: 379,692.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,489.18 : 692,067.24 = 275,134.68 : x
  2. Step 2: Convert to fraction form
    501,489.18/692,067.24 = 275,134.68/x
  3. Step 3: Cross multiply
    501,489.18x = 692,067.24 × 275,134.68
  4. Step 4: Simplify right side
    501,489.18x = 190,411,698,615.88
  5. Step 5: Solve for x
    x = 190,411,698,615.88/501,489.18
  6. Step 6: Final answer
    x = 379,692.54

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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.