Finding the Fourth Proportional to 1,121,163.08, 1,681,965.95 and 411,197.27
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Solution
The fourth proportional to 1,121,163.08, 1,681,965.95 and 411,197.27 is: 616,877.07
Step by Step Solution
- Step 1: Write the proportion equation
1,121,163.08 : 1,681,965.95 = 411,197.27 : x - Step 2: Convert to fraction form
1,121,163.08/1,681,965.95 = 411,197.27/x - Step 3: Cross multiply
1,121,163.08x = 1,681,965.95 × 411,197.27 - Step 4: Simplify right side
1,121,163.08x = 691,619,796,407.14 - Step 5: Solve for x
x = 691,619,796,407.14/1,121,163.08 - Step 6: Final answer
x = 616,877.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.