Finding the Fourth Proportional to 643,699.17, 965,639.00 and 194,369.09
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Solution
The fourth proportional to 643,699.17, 965,639.00 and 194,369.09 is: 291,580.88
Step by Step Solution
- Step 1: Write the proportion equation
643,699.17 : 965,639.00 = 194,369.09 : x - Step 2: Convert to fraction form
643,699.17/965,639.00 = 194,369.09/x - Step 3: Cross multiply
643,699.17x = 965,639.00 × 194,369.09 - Step 4: Simplify right side
643,699.17x = 187,690,369,356.24 - Step 5: Solve for x
x = 187,690,369,356.24/643,699.17 - Step 6: Final answer
x = 291,580.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.