Home / 386,212.20-579,318.30-327,892.20

Finding the Fourth Proportional to 386,212.20, 579,318.30 and 327,892.20

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Solution

The fourth proportional to 386,212.20, 579,318.30 and 327,892.20 is: 491,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,212.20 : 579,318.30 = 327,892.20 : x
  2. Step 2: Convert to fraction form
    386,212.20/579,318.30 = 327,892.20/x
  3. Step 3: Cross multiply
    386,212.20x = 579,318.30 × 327,892.20
  4. Step 4: Simplify right side
    386,212.20x = 189,953,951,887.26
  5. Step 5: Solve for x
    x = 189,953,951,887.26/386,212.20
  6. Step 6: Final answer
    x = 491,838.30

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1.5x scale

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.