Home / 403,920.20-605,588.70-226,481.60

Finding the Fourth Proportional to 403,920.20, 605,588.70 and 226,481.60

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Solution

The fourth proportional to 403,920.20, 605,588.70 and 226,481.60 is: 339,558.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,920.20 : 605,588.70 = 226,481.60 : x
  2. Step 2: Convert to fraction form
    403,920.20/605,588.70 = 226,481.60/x
  3. Step 3: Cross multiply
    403,920.20x = 605,588.70 × 226,481.60
  4. Step 4: Simplify right side
    403,920.20x = 137,154,697,717.92
  5. Step 5: Solve for x
    x = 137,154,697,717.92/403,920.20
  6. Step 6: Final answer
    x = 339,558.90

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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.