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Finding the Fourth Proportional to 322,345.10, 483,517.65 and 162,912.80

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Solution

The fourth proportional to 322,345.10, 483,517.65 and 162,912.80 is: 244,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,345.10 : 483,517.65 = 162,912.80 : x
  2. Step 2: Convert to fraction form
    322,345.10/483,517.65 = 162,912.80/x
  3. Step 3: Cross multiply
    322,345.10x = 483,517.65 × 162,912.80
  4. Step 4: Simplify right side
    322,345.10x = 78,771,214,210.92
  5. Step 5: Solve for x
    x = 78,771,214,210.92/322,345.10
  6. Step 6: Final answer
    x = 244,369.20

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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.