Finding the Fourth Proportional to 1,244,882,536.23, 1,717,939,574.04 and 716,235,919.45
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Solution
The fourth proportional to 1,244,882,536.23, 1,717,939,574.04 and 716,235,919.45 is: 988,406,531.99
Step by Step Solution
- Step 1: Write the proportion equation
1,244,882,536.23 : 1,717,939,574.04 = 716,235,919.45 : x - Step 2: Convert to fraction form
1,244,882,536.23/1,717,939,574.04 = 716,235,919.45/x - Step 3: Cross multiply
1,244,882,536.23x = 1,717,939,574.04 × 716,235,919.45 - Step 4: Simplify right side
1,244,882,536.23x = 1,230,450,030,372,080,896 - Step 5: Solve for x
x = 1,230,450,030,372,080,896/1,244,882,536.23 - Step 6: Final answer
x = 988,406,531.99
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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.