Finding the Fourth Proportional to 1,259,176.19, 1,737,664.45 and 686,216.81
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Solution
The fourth proportional to 1,259,176.19, 1,737,664.45 and 686,216.81 is: 946,979.92
Step by Step Solution
- Step 1: Write the proportion equation
1,259,176.19 : 1,737,664.45 = 686,216.81 : x - Step 2: Convert to fraction form
1,259,176.19/1,737,664.45 = 686,216.81/x - Step 3: Cross multiply
1,259,176.19x = 1,737,664.45 × 686,216.81 - Step 4: Simplify right side
1,259,176.19x = 1,192,414,558,358.02 - Step 5: Solve for x
x = 1,192,414,558,358.02/1,259,176.19 - Step 6: Final answer
x = 946,979.92
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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.