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Finding the Fourth Proportional to 414,736.40, 622,104.60 and 407,824.40

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Solution

The fourth proportional to 414,736.40, 622,104.60 and 407,824.40 is: 611,736.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,736.40 : 622,104.60 = 407,824.40 : x
  2. Step 2: Convert to fraction form
    414,736.40/622,104.60 = 407,824.40/x
  3. Step 3: Cross multiply
    414,736.40x = 622,104.60 × 407,824.40
  4. Step 4: Simplify right side
    414,736.40x = 253,709,435,232.24
  5. Step 5: Solve for x
    x = 253,709,435,232.24/414,736.40
  6. Step 6: Final answer
    x = 611,736.60

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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.