Home / 386,581.52-579,733.32-133,793.40

Finding the Fourth Proportional to 386,581.52, 579,733.32 and 133,793.40

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Solution

The fourth proportional to 386,581.52, 579,733.32 and 133,793.40 is: 200,642.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,581.52 : 579,733.32 = 133,793.40 : x
  2. Step 2: Convert to fraction form
    386,581.52/579,733.32 = 133,793.40/x
  3. Step 3: Cross multiply
    386,581.52x = 579,733.32 × 133,793.40
  4. Step 4: Simplify right side
    386,581.52x = 77,564,491,976.09
  5. Step 5: Solve for x
    x = 77,564,491,976.09/386,581.52
  6. Step 6: Final answer
    x = 200,642.01

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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.