Finding the Fourth Proportional to 1,380,511.36, 1,905,192.12 and 836,694.64
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Solution
The fourth proportional to 1,380,511.36, 1,905,192.12 and 836,694.64 is: 1,154,690.99
Step by Step Solution
- Step 1: Write the proportion equation
1,380,511.36 : 1,905,192.12 = 836,694.64 : x - Step 2: Convert to fraction form
1,380,511.36/1,905,192.12 = 836,694.64/x - Step 3: Cross multiply
1,380,511.36x = 1,905,192.12 × 836,694.64 - Step 4: Simplify right side
1,380,511.36x = 1,594,064,034,974.24 - Step 5: Solve for x
x = 1,594,064,034,974.24/1,380,511.36 - Step 6: Final answer
x = 1,154,690.99
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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.