Finding the Fourth Proportional to 1,215,898.06, 1,677,940.94 and 699,641.68
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Solution
The fourth proportional to 1,215,898.06, 1,677,940.94 and 699,641.68 is: 965,506.45
Step by Step Solution
- Step 1: Write the proportion equation
1,215,898.06 : 1,677,940.94 = 699,641.68 : x - Step 2: Convert to fraction form
1,215,898.06/1,677,940.94 = 699,641.68/x - Step 3: Cross multiply
1,215,898.06x = 1,677,940.94 × 699,641.68 - Step 4: Simplify right side
1,215,898.06x = 1,173,957,418,202.38 - Step 5: Solve for x
x = 1,173,957,418,202.38/1,215,898.06 - Step 6: Final answer
x = 965,506.45
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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.