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Finding the Fourth Proportional to 1,297,826.80, 1,945,818.60 and 498,799.60

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Solution

The fourth proportional to 1,297,826.80, 1,945,818.60 and 498,799.60 is: 747,845.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,826.80 : 1,945,818.60 = 498,799.60 : x
  2. Step 2: Convert to fraction form
    1,297,826.80/1,945,818.60 = 498,799.60/x
  3. Step 3: Cross multiply
    1,297,826.80x = 1,945,818.60 × 498,799.60
  4. Step 4: Simplify right side
    1,297,826.80x = 970,573,539,352.56
  5. Step 5: Solve for x
    x = 970,573,539,352.56/1,297,826.80
  6. Step 6: Final answer
    x = 747,845.20

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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.