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Finding the Fourth Proportional to 273,896.40, 410,844.60 and 76,904.40

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Solution

The fourth proportional to 273,896.40, 410,844.60 and 76,904.40 is: 115,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,896.40 : 410,844.60 = 76,904.40 : x
  2. Step 2: Convert to fraction form
    273,896.40/410,844.60 = 76,904.40/x
  3. Step 3: Cross multiply
    273,896.40x = 410,844.60 × 76,904.40
  4. Step 4: Simplify right side
    273,896.40x = 31,595,757,456.24
  5. Step 5: Solve for x
    x = 31,595,757,456.24/273,896.40
  6. Step 6: Final answer
    x = 115,356.60

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1.5x scale

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.