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Finding the Fourth Proportional to 276,618.40, 414,927.60 and 247,069.60

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Solution

The fourth proportional to 276,618.40, 414,927.60 and 247,069.60 is: 370,604.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,618.40 : 414,927.60 = 247,069.60 : x
  2. Step 2: Convert to fraction form
    276,618.40/414,927.60 = 247,069.60/x
  3. Step 3: Cross multiply
    276,618.40x = 414,927.60 × 247,069.60
  4. Step 4: Simplify right side
    276,618.40x = 102,515,996,160.96
  5. Step 5: Solve for x
    x = 102,515,996,160.96/276,618.40
  6. Step 6: Final answer
    x = 370,604.40

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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.