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Finding the Fourth Proportional to 737,714.40, 1,106,571.60 and 405,938.40

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Solution

The fourth proportional to 737,714.40, 1,106,571.60 and 405,938.40 is: 608,907.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,714.40 : 1,106,571.60 = 405,938.40 : x
  2. Step 2: Convert to fraction form
    737,714.40/1,106,571.60 = 405,938.40/x
  3. Step 3: Cross multiply
    737,714.40x = 1,106,571.60 × 405,938.40
  4. Step 4: Simplify right side
    737,714.40x = 449,199,904,789.44
  5. Step 5: Solve for x
    x = 449,199,904,789.44/737,714.40
  6. Step 6: Final answer
    x = 608,907.60

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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.