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Finding the Fourth Proportional to 700,649.29, 966,696.02 and 394,618.74

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Solution

The fourth proportional to 700,649.29, 966,696.02 and 394,618.74 is: 544,461.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,649.29 : 966,696.02 = 394,618.74 : x
  2. Step 2: Convert to fraction form
    700,649.29/966,696.02 = 394,618.74/x
  3. Step 3: Cross multiply
    700,649.29x = 966,696.02 × 394,618.74
  4. Step 4: Simplify right side
    700,649.29x = 381,476,361,257.03
  5. Step 5: Solve for x
    x = 381,476,361,257.03/700,649.29
  6. Step 6: Final answer
    x = 544,461.21

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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.