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Finding the Fourth Proportional to 483,250.69, 666,846.91 and 279,314.81

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Solution

The fourth proportional to 483,250.69, 666,846.91 and 279,314.81 is: 385,431.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,250.69 : 666,846.91 = 279,314.81 : x
  2. Step 2: Convert to fraction form
    483,250.69/666,846.91 = 279,314.81/x
  3. Step 3: Cross multiply
    483,250.69x = 666,846.91 × 279,314.81
  4. Step 4: Simplify right side
    483,250.69x = 186,260,217,481.32
  5. Step 5: Solve for x
    x = 186,260,217,481.32/483,250.69
  6. Step 6: Final answer
    x = 385,431.87

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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.