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Finding the Fourth Proportional to 445,617.20, 668,425.80 and 441,680.60

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Solution

The fourth proportional to 445,617.20, 668,425.80 and 441,680.60 is: 662,520.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,617.20 : 668,425.80 = 441,680.60 : x
  2. Step 2: Convert to fraction form
    445,617.20/668,425.80 = 441,680.60/x
  3. Step 3: Cross multiply
    445,617.20x = 668,425.80 × 441,680.60
  4. Step 4: Simplify right side
    445,617.20x = 295,230,708,399.48
  5. Step 5: Solve for x
    x = 295,230,708,399.48/445,617.20
  6. Step 6: Final answer
    x = 662,520.90

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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.