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Finding the Fourth Proportional to 484,544.57, 668,664.80 and 269,684.70

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Solution

The fourth proportional to 484,544.57, 668,664.80 and 269,684.70 is: 372,161.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,544.57 : 668,664.80 = 269,684.70 : x
  2. Step 2: Convert to fraction form
    484,544.57/668,664.80 = 269,684.70/x
  3. Step 3: Cross multiply
    484,544.57x = 668,664.80 × 269,684.70
  4. Step 4: Simplify right side
    484,544.57x = 180,328,664,640.14
  5. Step 5: Solve for x
    x = 180,328,664,640.14/484,544.57
  6. Step 6: Final answer
    x = 372,161.15

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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.