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Finding the Fourth Proportional to 327,133.91, 490,700.87 and 90,476.59

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Solution

The fourth proportional to 327,133.91, 490,700.87 and 90,476.59 is: 135,714.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,133.91 : 490,700.87 = 90,476.59 : x
  2. Step 2: Convert to fraction form
    327,133.91/490,700.87 = 90,476.59/x
  3. Step 3: Cross multiply
    327,133.91x = 490,700.87 × 90,476.59
  4. Step 4: Simplify right side
    327,133.91x = 44,396,941,427.63
  5. Step 5: Solve for x
    x = 44,396,941,427.63/327,133.91
  6. Step 6: Final answer
    x = 135,714.89

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Similar ratio
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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.