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Finding the Fourth Proportional to 352,309.69, 486,190.11 and 191,165.86

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Solution

The fourth proportional to 352,309.69, 486,190.11 and 191,165.86 is: 263,810.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,309.69 : 486,190.11 = 191,165.86 : x
  2. Step 2: Convert to fraction form
    352,309.69/486,190.11 = 191,165.86/x
  3. Step 3: Cross multiply
    352,309.69x = 486,190.11 × 191,165.86
  4. Step 4: Simplify right side
    352,309.69x = 92,942,950,501.64
  5. Step 5: Solve for x
    x = 92,942,950,501.64/352,309.69
  6. Step 6: Final answer
    x = 263,810.37

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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.