Finding the Fourth Proportional to 1,266,415.68, 1,747,654.02 and 685,638.70
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Solution
The fourth proportional to 1,266,415.68, 1,747,654.02 and 685,638.70 is: 946,181.61
Step by Step Solution
- Step 1: Write the proportion equation
1,266,415.68 : 1,747,654.02 = 685,638.70 : x - Step 2: Convert to fraction form
1,266,415.68/1,747,654.02 = 685,638.70/x - Step 3: Cross multiply
1,266,415.68x = 1,747,654.02 × 685,638.70 - Step 4: Simplify right side
1,266,415.68x = 1,198,259,230,322.57 - Step 5: Solve for x
x = 1,198,259,230,322.57/1,266,415.68 - Step 6: Final answer
x = 946,181.61
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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.