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Finding the Fourth Proportional to 1,411,662.88, 1,947,936.64 and 799,684.58

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Solution

The fourth proportional to 1,411,662.88, 1,947,936.64 and 799,684.58 is: 1,103,475.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,662.88 : 1,947,936.64 = 799,684.58 : x
  2. Step 2: Convert to fraction form
    1,411,662.88/1,947,936.64 = 799,684.58/x
  3. Step 3: Cross multiply
    1,411,662.88x = 1,947,936.64 × 799,684.58
  4. Step 4: Simplify right side
    1,411,662.88x = 1,557,734,882,086.12
  5. Step 5: Solve for x
    x = 1,557,734,882,086.12/1,411,662.88
  6. Step 6: Final answer
    x = 1,103,475.13

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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.