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Finding the Fourth Proportional to 373,580.68, 515,581.06 and 228,471.36

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Solution

The fourth proportional to 373,580.68, 515,581.06 and 228,471.36 is: 315,314.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,580.68 : 515,581.06 = 228,471.36 : x
  2. Step 2: Convert to fraction form
    373,580.68/515,581.06 = 228,471.36/x
  3. Step 3: Cross multiply
    373,580.68x = 515,581.06 × 228,471.36
  4. Step 4: Simplify right side
    373,580.68x = 117,795,505,968.44
  5. Step 5: Solve for x
    x = 117,795,505,968.44/373,580.68
  6. Step 6: Final answer
    x = 315,314.77

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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.