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Finding the Fourth Proportional to 484,516.60, 726,515.70 and 168,983.80

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Solution

The fourth proportional to 484,516.60, 726,515.70 and 168,983.80 is: 253,385.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,516.60 : 726,515.70 = 168,983.80 : x
  2. Step 2: Convert to fraction form
    484,516.60/726,515.70 = 168,983.80/x
  3. Step 3: Cross multiply
    484,516.60x = 726,515.70 × 168,983.80
  4. Step 4: Simplify right side
    484,516.60x = 122,769,383,745.66
  5. Step 5: Solve for x
    x = 122,769,383,745.66/484,516.60
  6. Step 6: Final answer
    x = 253,385.30

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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.