Home / 451,238.36-622,641.66-279,329.24

Finding the Fourth Proportional to 451,238.36, 622,641.66 and 279,329.24

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Solution

The fourth proportional to 451,238.36, 622,641.66 and 279,329.24 is: 385,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,238.36 : 622,641.66 = 279,329.24 : x
  2. Step 2: Convert to fraction form
    451,238.36/622,641.66 = 279,329.24/x
  3. Step 3: Cross multiply
    451,238.36x = 622,641.66 × 279,329.24
  4. Step 4: Simplify right side
    451,238.36x = 173,922,021,680.14
  5. Step 5: Solve for x
    x = 173,922,021,680.14/451,238.36
  6. Step 6: Final answer
    x = 385,432.70

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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.