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Finding the Fourth Proportional to 414,546.60, 620,783.10 and 331,602.60

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Solution

The fourth proportional to 414,546.60, 620,783.10 and 331,602.60 is: 496,574.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,546.60 : 620,783.10 = 331,602.60 : x
  2. Step 2: Convert to fraction form
    414,546.60/620,783.10 = 331,602.60/x
  3. Step 3: Cross multiply
    414,546.60x = 620,783.10 × 331,602.60
  4. Step 4: Simplify right side
    414,546.60x = 205,853,289,996.06
  5. Step 5: Solve for x
    x = 205,853,289,996.06/414,546.60
  6. Step 6: Final answer
    x = 496,574.55

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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.