Home / 419,200.20-627,564.78-276,784.20

Finding the Fourth Proportional to 419,200.20, 627,564.78 and 276,784.20

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Solution

The fourth proportional to 419,200.20, 627,564.78 and 276,784.20 is: 414,360.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,200.20 : 627,564.78 = 276,784.20 : x
  2. Step 2: Convert to fraction form
    419,200.20/627,564.78 = 276,784.20/x
  3. Step 3: Cross multiply
    419,200.20x = 627,564.78 × 276,784.20
  4. Step 4: Simplify right side
    419,200.20x = 173,700,015,580.48
  5. Step 5: Solve for x
    x = 173,700,015,580.48/419,200.20
  6. Step 6: Final answer
    x = 414,360.53

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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.