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Finding the Fourth Proportional to 611,578.41, 844,006.24 and 339,647.55

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Solution

The fourth proportional to 611,578.41, 844,006.24 and 339,647.55 is: 468,729.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,578.41 : 844,006.24 = 339,647.55 : x
  2. Step 2: Convert to fraction form
    611,578.41/844,006.24 = 339,647.55/x
  3. Step 3: Cross multiply
    611,578.41x = 844,006.24 × 339,647.55
  4. Step 4: Simplify right side
    611,578.41x = 286,664,651,600.71
  5. Step 5: Solve for x
    x = 286,664,651,600.71/611,578.41
  6. Step 6: Final answer
    x = 468,729.19

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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.