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Finding the Fourth Proportional to 389,236.96, 582,717.48 and 351,882.64

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Solution

The fourth proportional to 389,236.96, 582,717.48 and 351,882.64 is: 526,795.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,236.96 : 582,717.48 = 351,882.64 : x
  2. Step 2: Convert to fraction form
    389,236.96/582,717.48 = 351,882.64/x
  3. Step 3: Cross multiply
    389,236.96x = 582,717.48 × 351,882.64
  4. Step 4: Simplify right side
    389,236.96x = 205,048,165,236.55
  5. Step 5: Solve for x
    x = 205,048,165,236.55/389,236.96
  6. Step 6: Final answer
    x = 526,795.21

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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.