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Finding the Fourth Proportional to 352,493.79, 486,449.01 and 199,532.18

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Solution

The fourth proportional to 352,493.79, 486,449.01 and 199,532.18 is: 275,358.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,493.79 : 486,449.01 = 199,532.18 : x
  2. Step 2: Convert to fraction form
    352,493.79/486,449.01 = 199,532.18/x
  3. Step 3: Cross multiply
    352,493.79x = 486,449.01 × 199,532.18
  4. Step 4: Simplify right side
    352,493.79x = 97,062,228,991.90
  5. Step 5: Solve for x
    x = 97,062,228,991.90/352,493.79
  6. Step 6: Final answer
    x = 275,358.69

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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.