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Finding the Fourth Proportional to 394,874.58, 544,924.86 and 213,586.32

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Solution

The fourth proportional to 394,874.58, 544,924.86 and 213,586.32 is: 294,748.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,874.58 : 544,924.86 = 213,586.32 : x
  2. Step 2: Convert to fraction form
    394,874.58/544,924.86 = 213,586.32/x
  3. Step 3: Cross multiply
    394,874.58x = 544,924.86 × 213,586.32
  4. Step 4: Simplify right side
    394,874.58x = 116,388,495,523.92
  5. Step 5: Solve for x
    x = 116,388,495,523.92/394,874.58
  6. Step 6: Final answer
    x = 294,748.01

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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.