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Finding the Fourth Proportional to 529,817.70, 794,112.15 and 214,067.30

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Solution

The fourth proportional to 529,817.70, 794,112.15 and 214,067.30 is: 320,852.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,817.70 : 794,112.15 = 214,067.30 : x
  2. Step 2: Convert to fraction form
    529,817.70/794,112.15 = 214,067.30/x
  3. Step 3: Cross multiply
    529,817.70x = 794,112.15 × 214,067.30
  4. Step 4: Simplify right side
    529,817.70x = 169,993,443,847.70
  5. Step 5: Solve for x
    x = 169,993,443,847.70/529,817.70
  6. Step 6: Final answer
    x = 320,852.71

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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.