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Finding the Fourth Proportional to 704,203.01, 971,852.33 and 394,136.61

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Solution

The fourth proportional to 704,203.01, 971,852.33 and 394,136.61 is: 543,937.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,203.01 : 971,852.33 = 394,136.61 : x
  2. Step 2: Convert to fraction form
    704,203.01/971,852.33 = 394,136.61/x
  3. Step 3: Cross multiply
    704,203.01x = 971,852.33 × 394,136.61
  4. Step 4: Simplify right side
    704,203.01x = 383,042,583,752.14
  5. Step 5: Solve for x
    x = 383,042,583,752.14/704,203.01
  6. Step 6: Final answer
    x = 543,937.72

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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.