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Finding the Fourth Proportional to 503,358.91, 694,648.10 and 273,928.64

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Solution

The fourth proportional to 503,358.91, 694,648.10 and 273,928.64 is: 378,028.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,358.91 : 694,648.10 = 273,928.64 : x
  2. Step 2: Convert to fraction form
    503,358.91/694,648.10 = 273,928.64/x
  3. Step 3: Cross multiply
    503,358.91x = 694,648.10 × 273,928.64
  4. Step 4: Simplify right side
    503,358.91x = 190,284,006,523.17
  5. Step 5: Solve for x
    x = 190,284,006,523.17/503,358.91
  6. Step 6: Final answer
    x = 378,028.49

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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.