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Finding the Fourth Proportional to 414,149.60, 621,224.40 and 366,910.40

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Solution

The fourth proportional to 414,149.60, 621,224.40 and 366,910.40 is: 550,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,149.60 : 621,224.40 = 366,910.40 : x
  2. Step 2: Convert to fraction form
    414,149.60/621,224.40 = 366,910.40/x
  3. Step 3: Cross multiply
    414,149.60x = 621,224.40 × 366,910.40
  4. Step 4: Simplify right side
    414,149.60x = 227,933,693,093.76
  5. Step 5: Solve for x
    x = 227,933,693,093.76/414,149.60
  6. Step 6: Final answer
    x = 550,365.60

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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.