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Finding the Fourth Proportional to 737,311.20, 1,103,893.20 and 662,661.60

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Solution

The fourth proportional to 737,311.20, 1,103,893.20 and 662,661.60 is: 992,128.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,311.20 : 1,103,893.20 = 662,661.60 : x
  2. Step 2: Convert to fraction form
    737,311.20/1,103,893.20 = 662,661.60/x
  3. Step 3: Cross multiply
    737,311.20x = 1,103,893.20 × 662,661.60
  4. Step 4: Simplify right side
    737,311.20x = 731,507,634,141.12
  5. Step 5: Solve for x
    x = 731,507,634,141.12/737,311.20
  6. Step 6: Final answer
    x = 992,128.74

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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.