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Finding the Fourth Proportional to 352,339.14, 486,221.28 and 199,374.57

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Solution

The fourth proportional to 352,339.14, 486,221.28 and 199,374.57 is: 275,133.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,339.14 : 486,221.28 = 199,374.57 : x
  2. Step 2: Convert to fraction form
    352,339.14/486,221.28 = 199,374.57/x
  3. Step 3: Cross multiply
    352,339.14x = 486,221.28 × 199,374.57
  4. Step 4: Simplify right side
    352,339.14x = 96,940,158,624.85
  5. Step 5: Solve for x
    x = 96,940,158,624.85/352,339.14
  6. Step 6: Final answer
    x = 275,133.10

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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.