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Finding the Fourth Proportional to 704,204.01, 971,853.71 and 394,137.61

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Solution

The fourth proportional to 704,204.01, 971,853.71 and 394,137.61 is: 543,939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,204.01 : 971,853.71 = 394,137.61 : x
  2. Step 2: Convert to fraction form
    704,204.01/971,853.71 = 394,137.61/x
  3. Step 3: Cross multiply
    704,204.01x = 971,853.71 × 394,137.61
  4. Step 4: Simplify right side
    704,204.01x = 383,044,098,529.03
  5. Step 5: Solve for x
    x = 383,044,098,529.03/704,204.01
  6. Step 6: Final answer
    x = 543,939.10

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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.