Finding the Fourth Proportional to 1,243,643.99, 1,716,217.59 and 699,768.91
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Solution
The fourth proportional to 1,243,643.99, 1,716,217.59 and 699,768.91 is: 965,674.84
Step by Step Solution
- Step 1: Write the proportion equation
1,243,643.99 : 1,716,217.59 = 699,768.91 : x - Step 2: Convert to fraction form
1,243,643.99/1,716,217.59 = 699,768.91/x - Step 3: Cross multiply
1,243,643.99x = 1,716,217.59 × 699,768.91 - Step 4: Simplify right side
1,243,643.99x = 1,200,955,707,986.58 - Step 5: Solve for x
x = 1,200,955,707,986.58/1,243,643.99 - Step 6: Final answer
x = 965,674.84
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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.