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Finding the Fourth Proportional to 737,716.40, 1,106,574.60 and 405,940.40

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Solution

The fourth proportional to 737,716.40, 1,106,574.60 and 405,940.40 is: 608,910.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,716.40 : 1,106,574.60 = 405,940.40 : x
  2. Step 2: Convert to fraction form
    737,716.40/1,106,574.60 = 405,940.40/x
  3. Step 3: Cross multiply
    737,716.40x = 1,106,574.60 × 405,940.40
  4. Step 4: Simplify right side
    737,716.40x = 449,203,335,753.84
  5. Step 5: Solve for x
    x = 449,203,335,753.84/737,716.40
  6. Step 6: Final answer
    x = 608,910.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.