Home / 1,289,311.20-1,933,286.40-436,089.60

Finding the Fourth Proportional to 1,289,311.20, 1,933,286.40 and 436,089.60

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Solution

The fourth proportional to 1,289,311.20, 1,933,286.40 and 436,089.60 is: 653,904.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,311.20 : 1,933,286.40 = 436,089.60 : x
  2. Step 2: Convert to fraction form
    1,289,311.20/1,933,286.40 = 436,089.60/x
  3. Step 3: Cross multiply
    1,289,311.20x = 1,933,286.40 × 436,089.60
  4. Step 4: Simplify right side
    1,289,311.20x = 843,086,092,861.44
  5. Step 5: Solve for x
    x = 843,086,092,861.44/1,289,311.20
  6. Step 6: Final answer
    x = 653,904.27

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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.