Finding the Fourth Proportional to 1,259,129.36, 1,737,547.88 and 686,157.23
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Solution
The fourth proportional to 1,259,129.36, 1,737,547.88 and 686,157.23 is: 946,869.38
Step by Step Solution
- Step 1: Write the proportion equation
1,259,129.36 : 1,737,547.88 = 686,157.23 : x - Step 2: Convert to fraction form
1,259,129.36/1,737,547.88 = 686,157.23/x - Step 3: Cross multiply
1,259,129.36x = 1,737,547.88 × 686,157.23 - Step 4: Simplify right side
1,259,129.36x = 1,192,231,028,214.65 - Step 5: Solve for x
x = 1,192,231,028,214.65/1,259,129.36 - Step 6: Final answer
x = 946,869.38
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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.