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Finding the Fourth Proportional to 350,971.88, 484,341.28 and 198,042.54

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Solution

The fourth proportional to 350,971.88, 484,341.28 and 198,042.54 is: 273,298.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,971.88 : 484,341.28 = 198,042.54 : x
  2. Step 2: Convert to fraction form
    350,971.88/484,341.28 = 198,042.54/x
  3. Step 3: Cross multiply
    350,971.88x = 484,341.28 × 198,042.54
  4. Step 4: Simplify right side
    350,971.88x = 95,920,177,318.05
  5. Step 5: Solve for x
    x = 95,920,177,318.05/350,971.88
  6. Step 6: Final answer
    x = 273,298.75

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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.