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Finding the Fourth Proportional to 558,879.60, 836,672.04 and 368,991.60

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Solution

The fourth proportional to 558,879.60, 836,672.04 and 368,991.60 is: 552,399.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,879.60 : 836,672.04 = 368,991.60 : x
  2. Step 2: Convert to fraction form
    558,879.60/836,672.04 = 368,991.60/x
  3. Step 3: Cross multiply
    558,879.60x = 836,672.04 × 368,991.60
  4. Step 4: Simplify right side
    558,879.60x = 308,724,954,714.86
  5. Step 5: Solve for x
    x = 308,724,954,714.86/558,879.60
  6. Step 6: Final answer
    x = 552,399.76

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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.