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Finding the Fourth Proportional to 353,654.74, 530,487.72 and 196,879.66

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Solution

The fourth proportional to 353,654.74, 530,487.72 and 196,879.66 is: 295,322.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,654.74 : 530,487.72 = 196,879.66 : x
  2. Step 2: Convert to fraction form
    353,654.74/530,487.72 = 196,879.66/x
  3. Step 3: Cross multiply
    353,654.74x = 530,487.72 × 196,879.66
  4. Step 4: Simplify right side
    353,654.74x = 104,442,241,947.78
  5. Step 5: Solve for x
    x = 104,442,241,947.78/353,654.74
  6. Step 6: Final answer
    x = 295,322.61

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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.