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Finding the Fourth Proportional to 383,768.80, 529,601.48 and 211,682.92

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Solution

The fourth proportional to 383,768.80, 529,601.48 and 211,682.92 is: 292,122.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,768.80 : 529,601.48 = 211,682.92 : x
  2. Step 2: Convert to fraction form
    383,768.80/529,601.48 = 211,682.92/x
  3. Step 3: Cross multiply
    383,768.80x = 529,601.48 × 211,682.92
  4. Step 4: Simplify right side
    383,768.80x = 112,107,587,722.72
  5. Step 5: Solve for x
    x = 112,107,587,722.72/383,768.80
  6. Step 6: Final answer
    x = 292,122.73

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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.