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Finding the Fourth Proportional to 503,630.53, 694,988.57 and 274,182.91

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Solution

The fourth proportional to 503,630.53, 694,988.57 and 274,182.91 is: 378,360.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,630.53 : 694,988.57 = 274,182.91 : x
  2. Step 2: Convert to fraction form
    503,630.53/694,988.57 = 274,182.91/x
  3. Step 3: Cross multiply
    503,630.53x = 694,988.57 × 274,182.91
  4. Step 4: Simplify right side
    503,630.53x = 190,553,987,487.33
  5. Step 5: Solve for x
    x = 190,553,987,487.33/503,630.53
  6. Step 6: Final answer
    x = 378,360.68

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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.