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Finding the Fourth Proportional to 451,917.20, 678,048.60 and 444,832.40

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Solution

The fourth proportional to 451,917.20, 678,048.60 and 444,832.40 is: 667,418.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,917.20 : 678,048.60 = 444,832.40 : x
  2. Step 2: Convert to fraction form
    451,917.20/678,048.60 = 444,832.40/x
  3. Step 3: Cross multiply
    451,917.20x = 678,048.60 × 444,832.40
  4. Step 4: Simplify right side
    451,917.20x = 301,617,986,054.64
  5. Step 5: Solve for x
    x = 301,617,986,054.64/451,917.20
  6. Step 6: Final answer
    x = 667,418.69

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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.