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Finding the Fourth Proportional to 269,517.40, 404,276.10 and 190,720.60

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Solution

The fourth proportional to 269,517.40, 404,276.10 and 190,720.60 is: 286,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,517.40 : 404,276.10 = 190,720.60 : x
  2. Step 2: Convert to fraction form
    269,517.40/404,276.10 = 190,720.60/x
  3. Step 3: Cross multiply
    269,517.40x = 404,276.10 × 190,720.60
  4. Step 4: Simplify right side
    269,517.40x = 77,103,780,357.66
  5. Step 5: Solve for x
    x = 77,103,780,357.66/269,517.40
  6. Step 6: Final answer
    x = 286,080.90

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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.