Home / 505,814.38-698,022.75-276,373.30

Finding the Fourth Proportional to 505,814.38, 698,022.75 and 276,373.30

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Solution

The fourth proportional to 505,814.38, 698,022.75 and 276,373.30 is: 381,394.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,814.38 : 698,022.75 = 276,373.30 : x
  2. Step 2: Convert to fraction form
    505,814.38/698,022.75 = 276,373.30/x
  3. Step 3: Cross multiply
    505,814.38x = 698,022.75 × 276,373.30
  4. Step 4: Simplify right side
    505,814.38x = 192,914,854,048.84
  5. Step 5: Solve for x
    x = 192,914,854,048.84/505,814.38
  6. Step 6: Final answer
    x = 381,394.56

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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.