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Finding the Fourth Proportional to 276,641.10, 414,633.60 and 248,428.80

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Solution

The fourth proportional to 276,641.10, 414,633.60 and 248,428.80 is: 372,348.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,641.10 : 414,633.60 = 248,428.80 : x
  2. Step 2: Convert to fraction form
    276,641.10/414,633.60 = 248,428.80/x
  3. Step 3: Cross multiply
    276,641.10x = 414,633.60 × 248,428.80
  4. Step 4: Simplify right side
    276,641.10x = 103,006,927,687.68
  5. Step 5: Solve for x
    x = 103,006,927,687.68/276,641.10
  6. Step 6: Final answer
    x = 372,348.61

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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.