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Finding the Fourth Proportional to 220,234.20, 308,742.60 and 220,234.20

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Solution

The fourth proportional to 220,234.20, 308,742.60 and 220,234.20 is: 308,742.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,234.20 : 308,742.60 = 220,234.20 : x
  2. Step 2: Convert to fraction form
    220,234.20/308,742.60 = 220,234.20/x
  3. Step 3: Cross multiply
    220,234.20x = 308,742.60 × 220,234.20
  4. Step 4: Simplify right side
    220,234.20x = 67,995,679,516.92
  5. Step 5: Solve for x
    x = 67,995,679,516.92/220,234.20
  6. Step 6: Final answer
    x = 308,742.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.