Finding the Fourth Proportional to 2,128,414.41, 2,937,274.11 and 1,161,606.78
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Solution
The fourth proportional to 2,128,414.41, 2,937,274.11 and 1,161,606.78 is: 1,603,051.32
Step by Step Solution
- Step 1: Write the proportion equation
2,128,414.41 : 2,937,274.11 = 1,161,606.78 : x - Step 2: Convert to fraction form
2,128,414.41/2,937,274.11 = 1,161,606.78/x - Step 3: Cross multiply
2,128,414.41x = 2,937,274.11 × 1,161,606.78 - Step 4: Simplify right side
2,128,414.41x = 3,411,957,520,894.47 - Step 5: Solve for x
x = 3,411,957,520,894.47/2,128,414.41 - Step 6: Final answer
x = 1,603,051.32
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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.