Home / 483,023.12-666,558.94-289,540.14

Finding the Fourth Proportional to 483,023.12, 666,558.94 and 289,540.14

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Solution

The fourth proportional to 483,023.12, 666,558.94 and 289,540.14 is: 399,557.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,023.12 : 666,558.94 = 289,540.14 : x
  2. Step 2: Convert to fraction form
    483,023.12/666,558.94 = 289,540.14/x
  3. Step 3: Cross multiply
    483,023.12x = 666,558.94 × 289,540.14
  4. Step 4: Simplify right side
    483,023.12x = 192,995,568,805.85
  5. Step 5: Solve for x
    x = 192,995,568,805.85/483,023.12
  6. Step 6: Final answer
    x = 399,557.62

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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.