Finding the Fourth Proportional to 1,284,626.09, 1,772,654.79 and 711,559.19
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Solution
The fourth proportional to 1,284,626.09, 1,772,654.79 and 711,559.19 is: 981,880.11
Step by Step Solution
- Step 1: Write the proportion equation
1,284,626.09 : 1,772,654.79 = 711,559.19 : x - Step 2: Convert to fraction form
1,284,626.09/1,772,654.79 = 711,559.19/x - Step 3: Cross multiply
1,284,626.09x = 1,772,654.79 × 711,559.19 - Step 4: Simplify right side
1,284,626.09x = 1,261,348,802,090.38 - Step 5: Solve for x
x = 1,261,348,802,090.38/1,284,626.09 - Step 6: Final answer
x = 981,880.11
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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.