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Finding the Fourth Proportional to 323,713.64, 485,777.82 and 157,410.92

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Solution

The fourth proportional to 323,713.64, 485,777.82 and 157,410.92 is: 236,217.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,713.64 : 485,777.82 = 157,410.92 : x
  2. Step 2: Convert to fraction form
    323,713.64/485,777.82 = 157,410.92/x
  3. Step 3: Cross multiply
    323,713.64x = 485,777.82 × 157,410.92
  4. Step 4: Simplify right side
    323,713.64x = 76,466,733,561.79
  5. Step 5: Solve for x
    x = 76,466,733,561.79/323,713.64
  6. Step 6: Final answer
    x = 236,217.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.