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Finding the Fourth Proportional to 381,556.37, 526,521.44 and 211,777.13

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Solution

The fourth proportional to 381,556.37, 526,521.44 and 211,777.13 is: 292,237.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,556.37 : 526,521.44 = 211,777.13 : x
  2. Step 2: Convert to fraction form
    381,556.37/526,521.44 = 211,777.13/x
  3. Step 3: Cross multiply
    381,556.37x = 526,521.44 × 211,777.13
  4. Step 4: Simplify right side
    381,556.37x = 111,505,195,755.17
  5. Step 5: Solve for x
    x = 111,505,195,755.17/381,556.37
  6. Step 6: Final answer
    x = 292,237.81

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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.