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Finding the Fourth Proportional to 352,892.76, 486,994 and 191,749.12

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Solution

The fourth proportional to 352,892.76, 486,994 and 191,749.12 is: 264,614.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,892.76 : 486,994 = 191,749.12 : x
  2. Step 2: Convert to fraction form
    352,892.76/486,994 = 191,749.12/x
  3. Step 3: Cross multiply
    352,892.76x = 486,994 × 191,749.12
  4. Step 4: Simplify right side
    352,892.76x = 93,380,670,945.28
  5. Step 5: Solve for x
    x = 93,380,670,945.28/352,892.76
  6. Step 6: Final answer
    x = 264,614.87

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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.