Finding the Fourth Proportional to 1,163,806.87, 1,605,812.85 and 680,278.49
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Solution
The fourth proportional to 1,163,806.87, 1,605,812.85 and 680,278.49 is: 938,643.66
Step by Step Solution
- Step 1: Write the proportion equation
1,163,806.87 : 1,605,812.85 = 680,278.49 : x - Step 2: Convert to fraction form
1,163,806.87/1,605,812.85 = 680,278.49/x - Step 3: Cross multiply
1,163,806.87x = 1,605,812.85 × 680,278.49 - Step 4: Simplify right side
1,163,806.87x = 1,092,399,940,820.60 - Step 5: Solve for x
x = 1,092,399,940,820.60/1,163,806.87 - Step 6: Final answer
x = 938,643.66
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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.