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Finding the Fourth Proportional to 404,337.80, 605,469.90 and 298,584.20

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Solution

The fourth proportional to 404,337.80, 605,469.90 and 298,584.20 is: 447,110.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,337.80 : 605,469.90 = 298,584.20 : x
  2. Step 2: Convert to fraction form
    404,337.80/605,469.90 = 298,584.20/x
  3. Step 3: Cross multiply
    404,337.80x = 605,469.90 × 298,584.20
  4. Step 4: Simplify right side
    404,337.80x = 180,783,745,715.58
  5. Step 5: Solve for x
    x = 180,783,745,715.58/404,337.80
  6. Step 6: Final answer
    x = 447,110.67

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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.