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Finding the Fourth Proportional to 483,067.84, 666,652.80 and 279,112

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Solution

The fourth proportional to 483,067.84, 666,652.80 and 279,112 is: 385,185.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,067.84 : 666,652.80 = 279,112 : x
  2. Step 2: Convert to fraction form
    483,067.84/666,652.80 = 279,112/x
  3. Step 3: Cross multiply
    483,067.84x = 666,652.80 × 279,112
  4. Step 4: Simplify right side
    483,067.84x = 186,070,796,313.60
  5. Step 5: Solve for x
    x = 186,070,796,313.60/483,067.84
  6. Step 6: Final answer
    x = 385,185.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.