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Finding the Fourth Proportional to 323,080.40, 484,426.20 and 165,616.40

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Solution

The fourth proportional to 323,080.40, 484,426.20 and 165,616.40 is: 248,324.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,080.40 : 484,426.20 = 165,616.40 : x
  2. Step 2: Convert to fraction form
    323,080.40/484,426.20 = 165,616.40/x
  3. Step 3: Cross multiply
    323,080.40x = 484,426.20 × 165,616.40
  4. Step 4: Simplify right side
    323,080.40x = 80,228,923,309.68
  5. Step 5: Solve for x
    x = 80,228,923,309.68/323,080.40
  6. Step 6: Final answer
    x = 248,324.95

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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.