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Finding the Fourth Proportional to 296,276, 444,414 and 74,660

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Solution

The fourth proportional to 296,276, 444,414 and 74,660 is: 111,990

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,276 : 444,414 = 74,660 : x
  2. Step 2: Convert to fraction form
    296,276/444,414 = 74,660/x
  3. Step 3: Cross multiply
    296,276x = 444,414 × 74,660
  4. Step 4: Simplify right side
    296,276x = 33,179,949,240
  5. Step 5: Solve for x
    x = 33,179,949,240/296,276
  6. Step 6: Final answer
    x = 111,990

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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.