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Finding the Fourth Proportional to 483,078.36, 666,635.45 and 268,212.90

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Solution

The fourth proportional to 483,078.36, 666,635.45 and 268,212.90 is: 370,126.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,078.36 : 666,635.45 = 268,212.90 : x
  2. Step 2: Convert to fraction form
    483,078.36/666,635.45 = 268,212.90/x
  3. Step 3: Cross multiply
    483,078.36x = 666,635.45 × 268,212.90
  4. Step 4: Simplify right side
    483,078.36x = 178,800,227,287.31
  5. Step 5: Solve for x
    x = 178,800,227,287.31/483,078.36
  6. Step 6: Final answer
    x = 370,126.76

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1.5x scale

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.