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Finding the Fourth Proportional to 1,411,425.78, 1,947,863.62 and 799,583.37

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Solution

The fourth proportional to 1,411,425.78, 1,947,863.62 and 799,583.37 is: 1,103,479.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,425.78 : 1,947,863.62 = 799,583.37 : x
  2. Step 2: Convert to fraction form
    1,411,425.78/1,947,863.62 = 799,583.37/x
  3. Step 3: Cross multiply
    1,411,425.78x = 1,947,863.62 × 799,583.37
  4. Step 4: Simplify right side
    1,411,425.78x = 1,557,479,369,958.92
  5. Step 5: Solve for x
    x = 1,557,479,369,958.92/1,411,425.78
  6. Step 6: Final answer
    x = 1,103,479.47

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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.