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Finding the Fourth Proportional to 326,889.32, 491,072.12 and 193,856.84

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Solution

The fourth proportional to 326,889.32, 491,072.12 and 193,856.84 is: 291,223.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,889.32 : 491,072.12 = 193,856.84 : x
  2. Step 2: Convert to fraction form
    326,889.32/491,072.12 = 193,856.84/x
  3. Step 3: Cross multiply
    326,889.32x = 491,072.12 × 193,856.84
  4. Step 4: Simplify right side
    326,889.32x = 95,197,689,395.30
  5. Step 5: Solve for x
    x = 95,197,689,395.30/326,889.32
  6. Step 6: Final answer
    x = 291,223.00

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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.