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Finding the Fourth Proportional to 451,691.40, 677,099.70 and 404,452.20

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Solution

The fourth proportional to 451,691.40, 677,099.70 and 404,452.20 is: 606,286.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,691.40 : 677,099.70 = 404,452.20 : x
  2. Step 2: Convert to fraction form
    451,691.40/677,099.70 = 404,452.20/x
  3. Step 3: Cross multiply
    451,691.40x = 677,099.70 × 404,452.20
  4. Step 4: Simplify right side
    451,691.40x = 273,854,463,284.34
  5. Step 5: Solve for x
    x = 273,854,463,284.34/451,691.40
  6. Step 6: Final answer
    x = 606,286.64

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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.