Home / 445,837.39-668,240.91-205,448.69

Finding the Fourth Proportional to 445,837.39, 668,240.91 and 205,448.69

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Solution

The fourth proportional to 445,837.39, 668,240.91 and 205,448.69 is: 307,935.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,837.39 : 668,240.91 = 205,448.69 : x
  2. Step 2: Convert to fraction form
    445,837.39/668,240.91 = 205,448.69/x
  3. Step 3: Cross multiply
    445,837.39x = 668,240.91 × 205,448.69
  4. Step 4: Simplify right side
    445,837.39x = 137,289,219,563.91
  5. Step 5: Solve for x
    x = 137,289,219,563.91/445,837.39
  6. Step 6: Final answer
    x = 307,935.63

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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.