Finding the Fourth Proportional to 1,212,156.05, 1,672,698.26 and 668,262.11
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Solution
The fourth proportional to 1,212,156.05, 1,672,698.26 and 668,262.11 is: 922,159.21
Step by Step Solution
- Step 1: Write the proportion equation
1,212,156.05 : 1,672,698.26 = 668,262.11 : x - Step 2: Convert to fraction form
1,212,156.05/1,672,698.26 = 668,262.11/x - Step 3: Cross multiply
1,212,156.05x = 1,672,698.26 × 668,262.11 - Step 4: Simplify right side
1,212,156.05x = 1,117,800,856,916.13 - Step 5: Solve for x
x = 1,117,800,856,916.13/1,212,156.05 - Step 6: Final answer
x = 922,159.21
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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.