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Finding the Fourth Proportional to 269,863.40, 404,795.10 and 82,884.20

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Solution

The fourth proportional to 269,863.40, 404,795.10 and 82,884.20 is: 124,326.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,863.40 : 404,795.10 = 82,884.20 : x
  2. Step 2: Convert to fraction form
    269,863.40/404,795.10 = 82,884.20/x
  3. Step 3: Cross multiply
    269,863.40x = 404,795.10 × 82,884.20
  4. Step 4: Simplify right side
    269,863.40x = 33,551,118,027.42
  5. Step 5: Solve for x
    x = 33,551,118,027.42/269,863.40
  6. Step 6: Final answer
    x = 124,326.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.