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Finding the Fourth Proportional to 874,367.60, 1,311,598.24 and 275,375.43

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Solution

The fourth proportional to 874,367.60, 1,311,598.24 and 275,375.43 is: 413,077.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,367.60 : 1,311,598.24 = 275,375.43 : x
  2. Step 2: Convert to fraction form
    874,367.60/1,311,598.24 = 275,375.43/x
  3. Step 3: Cross multiply
    874,367.60x = 1,311,598.24 × 275,375.43
  4. Step 4: Simplify right side
    874,367.60x = 361,181,928,638.81
  5. Step 5: Solve for x
    x = 361,181,928,638.81/874,367.60
  6. Step 6: Final answer
    x = 413,077.90

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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.