Home / 579,930.18-799,935.39-419,021.52

Finding the Fourth Proportional to 579,930.18, 799,935.39 and 419,021.52

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Solution

The fourth proportional to 579,930.18, 799,935.39 and 419,021.52 is: 577,983.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,930.18 : 799,935.39 = 419,021.52 : x
  2. Step 2: Convert to fraction form
    579,930.18/799,935.39 = 419,021.52/x
  3. Step 3: Cross multiply
    579,930.18x = 799,935.39 × 419,021.52
  4. Step 4: Simplify right side
    579,930.18x = 335,190,143,019.59
  5. Step 5: Solve for x
    x = 335,190,143,019.59/579,930.18
  6. Step 6: Final answer
    x = 577,983.62

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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.