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Finding the Fourth Proportional to 350,634.46, 483,875.70 and 189,489.46

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Solution

The fourth proportional to 350,634.46, 483,875.70 and 189,489.46 is: 261,495.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,634.46 : 483,875.70 = 189,489.46 : x
  2. Step 2: Convert to fraction form
    350,634.46/483,875.70 = 189,489.46/x
  3. Step 3: Cross multiply
    350,634.46x = 483,875.70 × 189,489.46
  4. Step 4: Simplify right side
    350,634.46x = 91,689,345,100.12
  5. Step 5: Solve for x
    x = 91,689,345,100.12/350,634.46
  6. Step 6: Final answer
    x = 261,495.53

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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.