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Finding the Fourth Proportional to 222,769.60, 334,154.40 and 200,219.20

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Solution

The fourth proportional to 222,769.60, 334,154.40 and 200,219.20 is: 300,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,769.60 : 334,154.40 = 200,219.20 : x
  2. Step 2: Convert to fraction form
    222,769.60/334,154.40 = 200,219.20/x
  3. Step 3: Cross multiply
    222,769.60x = 334,154.40 × 200,219.20
  4. Step 4: Simplify right side
    222,769.60x = 66,904,126,644.48
  5. Step 5: Solve for x
    x = 66,904,126,644.48/222,769.60
  6. Step 6: Final answer
    x = 300,328.80

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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.