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Finding the Fourth Proportional to 365,072.52, 503,611.38 and 231,014.28

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Solution

The fourth proportional to 365,072.52, 503,611.38 and 231,014.28 is: 318,680.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,072.52 : 503,611.38 = 231,014.28 : x
  2. Step 2: Convert to fraction form
    365,072.52/503,611.38 = 231,014.28/x
  3. Step 3: Cross multiply
    365,072.52x = 503,611.38 × 231,014.28
  4. Step 4: Simplify right side
    365,072.52x = 116,341,420,350.51
  5. Step 5: Solve for x
    x = 116,341,420,350.51/365,072.52
  6. Step 6: Final answer
    x = 318,680.30

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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.