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Finding the Fourth Proportional to 394,435.60, 544,679.63 and 297,473.36

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Solution

The fourth proportional to 394,435.60, 544,679.63 and 297,473.36 is: 410,783.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,435.60 : 544,679.63 = 297,473.36 : x
  2. Step 2: Convert to fraction form
    394,435.60/544,679.63 = 297,473.36/x
  3. Step 3: Cross multiply
    394,435.60x = 544,679.63 × 297,473.36
  4. Step 4: Simplify right side
    394,435.60x = 162,027,678,172.29
  5. Step 5: Solve for x
    x = 162,027,678,172.29/394,435.60
  6. Step 6: Final answer
    x = 410,783.61

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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.