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Finding the Fourth Proportional to 365,139.20, 503,842.24 and 203,974.32

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Solution

The fourth proportional to 365,139.20, 503,842.24 and 203,974.32 is: 281,456.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,139.20 : 503,842.24 = 203,974.32 : x
  2. Step 2: Convert to fraction form
    365,139.20/503,842.24 = 203,974.32/x
  3. Step 3: Cross multiply
    365,139.20x = 503,842.24 × 203,974.32
  4. Step 4: Simplify right side
    365,139.20x = 102,770,878,291.28
  5. Step 5: Solve for x
    x = 102,770,878,291.28/365,139.20
  6. Step 6: Final answer
    x = 281,456.71

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1.5x scale

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.