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Finding the Fourth Proportional to 445,517.40, 668,276.10 and 113,093.40

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Solution

The fourth proportional to 445,517.40, 668,276.10 and 113,093.40 is: 169,640.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,517.40 : 668,276.10 = 113,093.40 : x
  2. Step 2: Convert to fraction form
    445,517.40/668,276.10 = 113,093.40/x
  3. Step 3: Cross multiply
    445,517.40x = 668,276.10 × 113,093.40
  4. Step 4: Simplify right side
    445,517.40x = 75,577,616,287.74
  5. Step 5: Solve for x
    x = 75,577,616,287.74/445,517.40
  6. Step 6: Final answer
    x = 169,640.10

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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.