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Finding the Fourth Proportional to 448,103.60, 672,155.40 and 444,993.20

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Solution

The fourth proportional to 448,103.60, 672,155.40 and 444,993.20 is: 667,489.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,103.60 : 672,155.40 = 444,993.20 : x
  2. Step 2: Convert to fraction form
    448,103.60/672,155.40 = 444,993.20/x
  3. Step 3: Cross multiply
    448,103.60x = 672,155.40 × 444,993.20
  4. Step 4: Simplify right side
    448,103.60x = 299,104,582,343.28
  5. Step 5: Solve for x
    x = 299,104,582,343.28/448,103.60
  6. Step 6: Final answer
    x = 667,489.80

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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.