Finding the Fourth Proportional to 1,287,153.63, 1,776,271.95 and 714,197.97
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Solution
The fourth proportional to 1,287,153.63, 1,776,271.95 and 714,197.97 is: 985,593.17
Step by Step Solution
- Step 1: Write the proportion equation
1,287,153.63 : 1,776,271.95 = 714,197.97 : x - Step 2: Convert to fraction form
1,287,153.63/1,776,271.95 = 714,197.97/x - Step 3: Cross multiply
1,287,153.63x = 1,776,271.95 × 714,197.97 - Step 4: Simplify right side
1,287,153.63x = 1,268,609,820,857.94 - Step 5: Solve for x
x = 1,268,609,820,857.94/1,287,153.63 - Step 6: Final answer
x = 985,593.17
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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.