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Finding the Fourth Proportional to 376,659.21, 519,793.38 and 206,893.35

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Solution

The fourth proportional to 376,659.21, 519,793.38 and 206,893.35 is: 285,514.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,659.21 : 519,793.38 = 206,893.35 : x
  2. Step 2: Convert to fraction form
    376,659.21/519,793.38 = 206,893.35/x
  3. Step 3: Cross multiply
    376,659.21x = 519,793.38 × 206,893.35
  4. Step 4: Simplify right side
    376,659.21x = 107,541,793,696.02
  5. Step 5: Solve for x
    x = 107,541,793,696.02/376,659.21
  6. Step 6: Final answer
    x = 285,514.84

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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.