Finding the Fourth Proportional to 644,511.26, 889,450.81 and 440,989.06
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Solution
The fourth proportional to 644,511.26, 889,450.81 and 440,989.06 is: 608,582.19
Step by Step Solution
- Step 1: Write the proportion equation
644,511.26 : 889,450.81 = 440,989.06 : x - Step 2: Convert to fraction form
644,511.26/889,450.81 = 440,989.06/x - Step 3: Cross multiply
644,511.26x = 889,450.81 × 440,989.06 - Step 4: Simplify right side
644,511.26x = 392,238,076,618.14 - Step 5: Solve for x
x = 392,238,076,618.14/644,511.26 - Step 6: Final answer
x = 608,582.19
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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.