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Finding the Fourth Proportional to 381,684.48, 526,714.56 and 211,914.24

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Solution

The fourth proportional to 381,684.48, 526,714.56 and 211,914.24 is: 292,436.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,684.48 : 526,714.56 = 211,914.24 : x
  2. Step 2: Convert to fraction form
    381,684.48/526,714.56 = 211,914.24/x
  3. Step 3: Cross multiply
    381,684.48x = 526,714.56 × 211,914.24
  4. Step 4: Simplify right side
    381,684.48x = 111,618,315,679.33
  5. Step 5: Solve for x
    x = 111,618,315,679.33/381,684.48
  6. Step 6: Final answer
    x = 292,436.09

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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.