Home / 386,349.28-579,403.92-186,545.44

Finding the Fourth Proportional to 386,349.28, 579,403.92 and 186,545.44

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Solution

The fourth proportional to 386,349.28, 579,403.92 and 186,545.44 is: 279,760.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,349.28 : 579,403.92 = 186,545.44 : x
  2. Step 2: Convert to fraction form
    386,349.28/579,403.92 = 186,545.44/x
  3. Step 3: Cross multiply
    386,349.28x = 579,403.92 × 186,545.44
  4. Step 4: Simplify right side
    386,349.28x = 108,085,159,194.13
  5. Step 5: Solve for x
    x = 108,085,159,194.13/386,349.28
  6. Step 6: Final answer
    x = 279,760.22

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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.