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Finding the Fourth Proportional to 276,321.40, 414,482.10 and 276,321.40

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Solution

The fourth proportional to 276,321.40, 414,482.10 and 276,321.40 is: 414,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,321.40 : 414,482.10 = 276,321.40 : x
  2. Step 2: Convert to fraction form
    276,321.40/414,482.10 = 276,321.40/x
  3. Step 3: Cross multiply
    276,321.40x = 414,482.10 × 276,321.40
  4. Step 4: Simplify right side
    276,321.40x = 114,530,274,146.94
  5. Step 5: Solve for x
    x = 114,530,274,146.94/276,321.40
  6. Step 6: Final answer
    x = 414,482.10

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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.