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Finding the Fourth Proportional to 350,636.46, 483,878.46 and 189,491.46

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Solution

The fourth proportional to 350,636.46, 483,878.46 and 189,491.46 is: 261,498.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,636.46 : 483,878.46 = 189,491.46 : x
  2. Step 2: Convert to fraction form
    350,636.46/483,878.46 = 189,491.46/x
  3. Step 3: Cross multiply
    350,636.46x = 483,878.46 × 189,491.46
  4. Step 4: Simplify right side
    350,636.46x = 91,690,835,847.95
  5. Step 5: Solve for x
    x = 91,690,835,847.95/350,636.46
  6. Step 6: Final answer
    x = 261,498.29

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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.