Finding the Fourth Proportional to 1,116,364.92, 1,540,624.14 and 639,529.08
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Solution
The fourth proportional to 1,116,364.92, 1,540,624.14 and 639,529.08 is: 882,573.36
Step by Step Solution
- Step 1: Write the proportion equation
1,116,364.92 : 1,540,624.14 = 639,529.08 : x - Step 2: Convert to fraction form
1,116,364.92/1,540,624.14 = 639,529.08/x - Step 3: Cross multiply
1,116,364.92x = 1,540,624.14 × 639,529.08 - Step 4: Simplify right side
1,116,364.92x = 985,273,938,879.99 - Step 5: Solve for x
x = 985,273,938,879.99/1,116,364.92 - Step 6: Final answer
x = 882,573.36
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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.