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Finding the Fourth Proportional to 349,761.68, 523,556.49 and 189,439.43

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Solution

The fourth proportional to 349,761.68, 523,556.49 and 189,439.43 is: 283,570.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,761.68 : 523,556.49 = 189,439.43 : x
  2. Step 2: Convert to fraction form
    349,761.68/523,556.49 = 189,439.43/x
  3. Step 3: Cross multiply
    349,761.68x = 523,556.49 × 189,439.43
  4. Step 4: Simplify right side
    349,761.68x = 99,182,240,420.62
  5. Step 5: Solve for x
    x = 99,182,240,420.62/349,761.68
  6. Step 6: Final answer
    x = 283,570.92

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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.