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Finding the Fourth Proportional to 276,633.10, 414,621.60 and 248,420.80

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Solution

The fourth proportional to 276,633.10, 414,621.60 and 248,420.80 is: 372,336.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,633.10 : 414,621.60 = 248,420.80 : x
  2. Step 2: Convert to fraction form
    276,633.10/414,621.60 = 248,420.80/x
  3. Step 3: Cross multiply
    276,633.10x = 414,621.60 × 248,420.80
  4. Step 4: Simplify right side
    276,633.10x = 103,000,629,569.28
  5. Step 5: Solve for x
    x = 103,000,629,569.28/276,633.10
  6. Step 6: Final answer
    x = 372,336.61

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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.