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Finding the Fourth Proportional to 413,632.60, 620,909.70 and 227,008.60

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Solution

The fourth proportional to 413,632.60, 620,909.70 and 227,008.60 is: 340,765.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,632.60 : 620,909.70 = 227,008.60 : x
  2. Step 2: Convert to fraction form
    413,632.60/620,909.70 = 227,008.60/x
  3. Step 3: Cross multiply
    413,632.60x = 620,909.70 × 227,008.60
  4. Step 4: Simplify right side
    413,632.60x = 140,951,841,723.42
  5. Step 5: Solve for x
    x = 140,951,841,723.42/413,632.60
  6. Step 6: Final answer
    x = 340,765.79

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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.