Home / 451,949.36-623,982.27-280,049.73

Finding the Fourth Proportional to 451,949.36, 623,982.27 and 280,049.73

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Solution

The fourth proportional to 451,949.36, 623,982.27 and 280,049.73 is: 386,649.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,949.36 : 623,982.27 = 280,049.73 : x
  2. Step 2: Convert to fraction form
    451,949.36/623,982.27 = 280,049.73/x
  3. Step 3: Cross multiply
    451,949.36x = 623,982.27 × 280,049.73
  4. Step 4: Simplify right side
    451,949.36x = 174,746,066,238.29
  5. Step 5: Solve for x
    x = 174,746,066,238.29/451,949.36
  6. Step 6: Final answer
    x = 386,649.66

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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.