Finding the Fourth Proportional to 1,161,653.68, 1,603,088.49 and 645,408.28
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Solution
The fourth proportional to 1,161,653.68, 1,603,088.49 and 645,408.28 is: 890,666.99
Step by Step Solution
- Step 1: Write the proportion equation
1,161,653.68 : 1,603,088.49 = 645,408.28 : x - Step 2: Convert to fraction form
1,161,653.68/1,603,088.49 = 645,408.28/x - Step 3: Cross multiply
1,161,653.68x = 1,603,088.49 × 645,408.28 - Step 4: Simplify right side
1,161,653.68x = 1,034,646,585,018.70 - Step 5: Solve for x
x = 1,034,646,585,018.70/1,161,653.68 - Step 6: Final answer
x = 890,666.99
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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.