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Finding the Fourth Proportional to 228,562.20, 342,065.70 and 200,568.60

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Solution

The fourth proportional to 228,562.20, 342,065.70 and 200,568.60 is: 300,170.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,562.20 : 342,065.70 = 200,568.60 : x
  2. Step 2: Convert to fraction form
    228,562.20/342,065.70 = 200,568.60/x
  3. Step 3: Cross multiply
    228,562.20x = 342,065.70 × 200,568.60
  4. Step 4: Simplify right side
    228,562.20x = 68,607,638,557.02
  5. Step 5: Solve for x
    x = 68,607,638,557.02/228,562.20
  6. Step 6: Final answer
    x = 300,170.54

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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.