Home / 505,839.13-698,049.55-276,391.39

Finding the Fourth Proportional to 505,839.13, 698,049.55 and 276,391.39

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Solution

The fourth proportional to 505,839.13, 698,049.55 and 276,391.39 is: 381,415.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,839.13 : 698,049.55 = 276,391.39 : x
  2. Step 2: Convert to fraction form
    505,839.13/698,049.55 = 276,391.39/x
  3. Step 3: Cross multiply
    505,839.13x = 698,049.55 × 276,391.39
  4. Step 4: Simplify right side
    505,839.13x = 192,934,883,767.88
  5. Step 5: Solve for x
    x = 192,934,883,767.88/505,839.13
  6. Step 6: Final answer
    x = 381,415.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.