Finding the Fourth Proportional to 1,965,971.62, 2,711,643.29 and 1,312,268.05
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Solution
The fourth proportional to 1,965,971.62, 2,711,643.29 and 1,312,268.05 is: 1,809,997.06
Step by Step Solution
- Step 1: Write the proportion equation
1,965,971.62 : 2,711,643.29 = 1,312,268.05 : x - Step 2: Convert to fraction form
1,965,971.62/2,711,643.29 = 1,312,268.05/x - Step 3: Cross multiply
1,965,971.62x = 2,711,643.29 × 1,312,268.05 - Step 4: Simplify right side
1,965,971.62x = 3,558,402,852,463.89 - Step 5: Solve for x
x = 3,558,402,852,463.89/1,965,971.62 - Step 6: Final answer
x = 1,809,997.06
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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.