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Finding the Fourth Proportional to 323,944.40, 485,722.20 and 166,480.40

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Solution

The fourth proportional to 323,944.40, 485,722.20 and 166,480.40 is: 249,620.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,944.40 : 485,722.20 = 166,480.40 : x
  2. Step 2: Convert to fraction form
    323,944.40/485,722.20 = 166,480.40/x
  3. Step 3: Cross multiply
    323,944.40x = 485,722.20 × 166,480.40
  4. Step 4: Simplify right side
    323,944.40x = 80,863,226,144.88
  5. Step 5: Solve for x
    x = 80,863,226,144.88/323,944.40
  6. Step 6: Final answer
    x = 249,620.69

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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.