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Finding the Fourth Proportional to 352,346.85, 486,239.92 and 191,201.89

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Solution

The fourth proportional to 352,346.85, 486,239.92 and 191,201.89 is: 263,859.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,346.85 : 486,239.92 = 191,201.89 : x
  2. Step 2: Convert to fraction form
    352,346.85/486,239.92 = 191,201.89/x
  3. Step 3: Cross multiply
    352,346.85x = 486,239.92 × 191,201.89
  4. Step 4: Simplify right side
    352,346.85x = 92,969,993,627.48
  5. Step 5: Solve for x
    x = 92,969,993,627.48/352,346.85
  6. Step 6: Final answer
    x = 263,859.30

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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.