Finding the Fourth Proportional to 1,186,307.08, 1,637,101.27 and 642,441.19
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Solution
The fourth proportional to 1,186,307.08, 1,637,101.27 and 642,441.19 is: 886,567.49
Step by Step Solution
- Step 1: Write the proportion equation
1,186,307.08 : 1,637,101.27 = 642,441.19 : x - Step 2: Convert to fraction form
1,186,307.08/1,637,101.27 = 642,441.19/x - Step 3: Cross multiply
1,186,307.08x = 1,637,101.27 × 642,441.19 - Step 4: Simplify right side
1,186,307.08x = 1,051,741,288,049.31 - Step 5: Solve for x
x = 1,051,741,288,049.31/1,186,307.08 - Step 6: Final answer
x = 886,567.49
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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.