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Finding the Fourth Proportional to 323,048.58, 445,730.78 and 271,561.43

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Solution

The fourth proportional to 323,048.58, 445,730.78 and 271,561.43 is: 374,690.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,048.58 : 445,730.78 = 271,561.43 : x
  2. Step 2: Convert to fraction form
    323,048.58/445,730.78 = 271,561.43/x
  3. Step 3: Cross multiply
    323,048.58x = 445,730.78 × 271,561.43
  4. Step 4: Simplify right side
    323,048.58x = 121,043,285,783.16
  5. Step 5: Solve for x
    x = 121,043,285,783.16/323,048.58
  6. Step 6: Final answer
    x = 374,690.66

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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.