Finding the Fourth Proportional to 1,912,193.76, 2,638,981.84 and 1,096,473.52
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Solution
The fourth proportional to 1,912,193.76, 2,638,981.84 and 1,096,473.52 is: 1,513,222.02
Step by Step Solution
- Step 1: Write the proportion equation
1,912,193.76 : 2,638,981.84 = 1,096,473.52 : x - Step 2: Convert to fraction form
1,912,193.76/2,638,981.84 = 1,096,473.52/x - Step 3: Cross multiply
1,912,193.76x = 2,638,981.84 × 1,096,473.52 - Step 4: Simplify right side
1,912,193.76x = 2,893,573,707,320.88 - Step 5: Solve for x
x = 2,893,573,707,320.88/1,912,193.76 - Step 6: Final answer
x = 1,513,222.02
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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.