Final answer:
The value of the account at the end of 7 years is approximately $621.42.
Step-by-step explanation:
To find the value of the account at the end of 7 years, we can use the formula for compound interest: A = P(1 + r/n)^(nt), where A is the final amount, P is the principal amount, r is the interest rate, n is the number of times the interest is compounded per year, and t is the number of years. In this case, P = $550, r = 1.75% or 0.0175, n = 4 (compounded quarterly), and t = 7. Plugging in these values, we get:
A = $550(1 + 0.0175/4)^(4*7)
Simplifying this equation gives us:
A ≈ $550(1.004375)^28
A ≈ $550(1.129857986109405)
A ≈ $621.42
Therefore, the value of the account at the end of 7 years is approximately $621.42.