Home / 392,619.60-541,817.64-222,856.56

Finding the Fourth Proportional to 392,619.60, 541,817.64 and 222,856.56

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Solution

The fourth proportional to 392,619.60, 541,817.64 and 222,856.56 is: 307,543.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,619.60 : 541,817.64 = 222,856.56 : x
  2. Step 2: Convert to fraction form
    392,619.60/541,817.64 = 222,856.56/x
  3. Step 3: Cross multiply
    392,619.60x = 541,817.64 × 222,856.56
  4. Step 4: Simplify right side
    392,619.60x = 120,747,615,397.72
  5. Step 5: Solve for x
    x = 120,747,615,397.72/392,619.60
  6. Step 6: Final answer
    x = 307,543.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.