The number $4.34 \times 10^{-7}$ is written in scientific notation. To express it as a decimal:

1. Move the decimal point 7 places to the left (since the exponent is negative): $4.34 \times 10^{-7} = 0.000000434$

So, $4.34 \times 10^{-7}$ is equivalent to $0.000000434$ in decimal form.

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Here are five related questions to expand on this concept:

1. How would you write $7.89 \times 10^5$ in decimal form?
2. What is $3.21 \times 10^{-3}$ in decimal?
3. How can you convert a large number like 2,500,000 into scientific notation?
4. What is the significance of the exponent in scientific notation?
5. How do you multiply two numbers in scientific notation?

Tip: When converting from scientific notation, a negative exponent means moving the decimal to the left, and a positive exponent means moving it to the right.