Home / 451,231.36-622,632-279,322.24

Finding the Fourth Proportional to 451,231.36, 622,632 and 279,322.24

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Solution

The fourth proportional to 451,231.36, 622,632 and 279,322.24 is: 385,423.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,231.36 : 622,632 = 279,322.24 : x
  2. Step 2: Convert to fraction form
    451,231.36/622,632 = 279,322.24/x
  3. Step 3: Cross multiply
    451,231.36x = 622,632 × 279,322.24
  4. Step 4: Simplify right side
    451,231.36x = 173,914,964,935.68
  5. Step 5: Solve for x
    x = 173,914,964,935.68/451,231.36
  6. Step 6: Final answer
    x = 385,423.05

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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.