Home / 386,623.24-579,696.64-133,844.92

Finding the Fourth Proportional to 386,623.24, 579,696.64 and 133,844.92

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Solution

The fourth proportional to 386,623.24, 579,696.64 and 133,844.92 is: 200,684.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,623.24 : 579,696.64 = 133,844.92 : x
  2. Step 2: Convert to fraction form
    386,623.24/579,696.64 = 133,844.92/x
  3. Step 3: Cross multiply
    386,623.24x = 579,696.64 × 133,844.92
  4. Step 4: Simplify right side
    386,623.24x = 77,589,450,405.07
  5. Step 5: Solve for x
    x = 77,589,450,405.07/386,623.24
  6. Step 6: Final answer
    x = 200,684.91

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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.