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Finding the Fourth Proportional to 368,577.85, 508,794.37 and 247,789.19

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Solution

The fourth proportional to 368,577.85, 508,794.37 and 247,789.19 is: 342,054.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,577.85 : 508,794.37 = 247,789.19 : x
  2. Step 2: Convert to fraction form
    368,577.85/508,794.37 = 247,789.19/x
  3. Step 3: Cross multiply
    368,577.85x = 508,794.37 × 247,789.19
  4. Step 4: Simplify right side
    368,577.85x = 126,073,744,818.86
  5. Step 5: Solve for x
    x = 126,073,744,818.86/368,577.85
  6. Step 6: Final answer
    x = 342,054.59

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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.