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Finding the Fourth Proportional to 361,099.90, 498,311.75 and 199,951.48

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Solution

The fourth proportional to 361,099.90, 498,311.75 and 199,951.48 is: 275,929.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,099.90 : 498,311.75 = 199,951.48 : x
  2. Step 2: Convert to fraction form
    361,099.90/498,311.75 = 199,951.48/x
  3. Step 3: Cross multiply
    361,099.90x = 498,311.75 × 199,951.48
  4. Step 4: Simplify right side
    361,099.90x = 99,638,168,422.57
  5. Step 5: Solve for x
    x = 99,638,168,422.57/361,099.90
  6. Step 6: Final answer
    x = 275,929.65

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1.5x scale

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.