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Finding the Fourth Proportional to 351,713.81, 485,301.15 and 196,667.91

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Solution

The fourth proportional to 351,713.81, 485,301.15 and 196,667.91 is: 271,365.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,713.81 : 485,301.15 = 196,667.91 : x
  2. Step 2: Convert to fraction form
    351,713.81/485,301.15 = 196,667.91/x
  3. Step 3: Cross multiply
    351,713.81x = 485,301.15 × 196,667.91
  4. Step 4: Simplify right side
    351,713.81x = 95,443,162,891.10
  5. Step 5: Solve for x
    x = 95,443,162,891.10/351,713.81
  6. Step 6: Final answer
    x = 271,365.98

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1.5x scale

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.