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Finding the Fourth Proportional to 484,920.96, 669,142.89 and 270,080.97

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Solution

The fourth proportional to 484,920.96, 669,142.89 and 270,080.97 is: 372,684.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,920.96 : 669,142.89 = 270,080.97 : x
  2. Step 2: Convert to fraction form
    484,920.96/669,142.89 = 270,080.97/x
  3. Step 3: Cross multiply
    484,920.96x = 669,142.89 × 270,080.97
  4. Step 4: Simplify right side
    484,920.96x = 180,722,760,799.80
  5. Step 5: Solve for x
    x = 180,722,760,799.80/484,920.96
  6. Step 6: Final answer
    x = 372,684.99

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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.