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Finding the Fourth Proportional to 322,563.60, 483,845.40 and 165,099.60

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Solution

The fourth proportional to 322,563.60, 483,845.40 and 165,099.60 is: 247,649.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,563.60 : 483,845.40 = 165,099.60 : x
  2. Step 2: Convert to fraction form
    322,563.60/483,845.40 = 165,099.60/x
  3. Step 3: Cross multiply
    322,563.60x = 483,845.40 × 165,099.60
  4. Step 4: Simplify right side
    322,563.60x = 79,882,682,001.84
  5. Step 5: Solve for x
    x = 79,882,682,001.84/322,563.60
  6. Step 6: Final answer
    x = 247,649.40

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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.