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Finding the Fourth Proportional to 227,074.20, 339,955.20 and 220,513.20

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Solution

The fourth proportional to 227,074.20, 339,955.20 and 220,513.20 is: 330,132.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,074.20 : 339,955.20 = 220,513.20 : x
  2. Step 2: Convert to fraction form
    227,074.20/339,955.20 = 220,513.20/x
  3. Step 3: Cross multiply
    227,074.20x = 339,955.20 × 220,513.20
  4. Step 4: Simplify right side
    227,074.20x = 74,964,609,008.64
  5. Step 5: Solve for x
    x = 74,964,609,008.64/227,074.20
  6. Step 6: Final answer
    x = 330,132.66

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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.