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Finding the Fourth Proportional to 452,015.20, 678,195.60 and 444,930.40

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Solution

The fourth proportional to 452,015.20, 678,195.60 and 444,930.40 is: 667,565.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,015.20 : 678,195.60 = 444,930.40 : x
  2. Step 2: Convert to fraction form
    452,015.20/678,195.60 = 444,930.40/x
  3. Step 3: Cross multiply
    452,015.20x = 678,195.60 × 444,930.40
  4. Step 4: Simplify right side
    452,015.20x = 301,749,839,586.24
  5. Step 5: Solve for x
    x = 301,749,839,586.24/452,015.20
  6. Step 6: Final answer
    x = 667,565.69

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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.