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Finding the Fourth Proportional to 352,833.73, 486,912.45 and 216,956.46

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Solution

The fourth proportional to 352,833.73, 486,912.45 and 216,956.46 is: 299,401.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,833.73 : 486,912.45 = 216,956.46 : x
  2. Step 2: Convert to fraction form
    352,833.73/486,912.45 = 216,956.46/x
  3. Step 3: Cross multiply
    352,833.73x = 486,912.45 × 216,956.46
  4. Step 4: Simplify right side
    352,833.73x = 105,638,801,481.93
  5. Step 5: Solve for x
    x = 105,638,801,481.93/352,833.73
  6. Step 6: Final answer
    x = 299,401.08

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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.