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Finding the Fourth Proportional to 324,513.72, 486,188.19 and 198,088.92

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Solution

The fourth proportional to 324,513.72, 486,188.19 and 198,088.92 is: 296,777.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,513.72 : 486,188.19 = 198,088.92 : x
  2. Step 2: Convert to fraction form
    324,513.72/486,188.19 = 198,088.92/x
  3. Step 3: Cross multiply
    324,513.72x = 486,188.19 × 198,088.92
  4. Step 4: Simplify right side
    324,513.72x = 96,308,493,473.85
  5. Step 5: Solve for x
    x = 96,308,493,473.85/324,513.72
  6. Step 6: Final answer
    x = 296,777.88

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1.5x scale

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.