Finding the Fourth Proportional to 1,578,243.36, 2,177,991.76 and 853,105.12
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Solution
The fourth proportional to 1,578,243.36, 2,177,991.76 and 853,105.12 is: 1,177,293.67
Step by Step Solution
- Step 1: Write the proportion equation
1,578,243.36 : 2,177,991.76 = 853,105.12 : x - Step 2: Convert to fraction form
1,578,243.36/2,177,991.76 = 853,105.12/x - Step 3: Cross multiply
1,578,243.36x = 2,177,991.76 × 853,105.12 - Step 4: Simplify right side
1,578,243.36x = 1,858,055,921,773.81 - Step 5: Solve for x
x = 1,858,055,921,773.81/1,578,243.36 - Step 6: Final answer
x = 1,177,293.67
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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.