Finding the Fourth Proportional to 1,174,728, 1,621,126.08 and 638,184
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Solution
The fourth proportional to 1,174,728, 1,621,126.08 and 638,184 is: 880,694.70
Step by Step Solution
- Step 1: Write the proportion equation
1,174,728 : 1,621,126.08 = 638,184 : x - Step 2: Convert to fraction form
1,174,728/1,621,126.08 = 638,184/x - Step 3: Cross multiply
1,174,728x = 1,621,126.08 × 638,184 - Step 4: Simplify right side
1,174,728x = 1,034,576,726,238.72 - Step 5: Solve for x
x = 1,034,576,726,238.72/1,174,728 - Step 6: Final answer
x = 880,694.70
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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.