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Finding the Fourth Proportional to 685,651.05, 945,884.39 and 444,011.54

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Solution

The fourth proportional to 685,651.05, 945,884.39 and 444,011.54 is: 612,532.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,651.05 : 945,884.39 = 444,011.54 : x
  2. Step 2: Convert to fraction form
    685,651.05/945,884.39 = 444,011.54/x
  3. Step 3: Cross multiply
    685,651.05x = 945,884.39 × 444,011.54
  4. Step 4: Simplify right side
    685,651.05x = 419,983,577,716.38
  5. Step 5: Solve for x
    x = 419,983,577,716.38/685,651.05
  6. Step 6: Final answer
    x = 612,532.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.