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Finding the Fourth Proportional to 286,234.32, 395,004.24 and 158,910.24

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Solution

The fourth proportional to 286,234.32, 395,004.24 and 158,910.24 is: 219,296.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,234.32 : 395,004.24 = 158,910.24 : x
  2. Step 2: Convert to fraction form
    286,234.32/395,004.24 = 158,910.24/x
  3. Step 3: Cross multiply
    286,234.32x = 395,004.24 × 158,910.24
  4. Step 4: Simplify right side
    286,234.32x = 62,770,218,579.42
  5. Step 5: Solve for x
    x = 62,770,218,579.42/286,234.32
  6. Step 6: Final answer
    x = 219,296.62

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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.