Finding the Fourth Proportional to 1,258,772.05, 1,737,125.36 and 685,812.07
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Solution
The fourth proportional to 1,258,772.05, 1,737,125.36 and 685,812.07 is: 946,431.52
Step by Step Solution
- Step 1: Write the proportion equation
1,258,772.05 : 1,737,125.36 = 685,812.07 : x - Step 2: Convert to fraction form
1,258,772.05/1,737,125.36 = 685,812.07/x - Step 3: Cross multiply
1,258,772.05x = 1,737,125.36 × 685,812.07 - Step 4: Simplify right side
1,258,772.05x = 1,191,341,538,991.10 - Step 5: Solve for x
x = 1,191,341,538,991.10/1,258,772.05 - Step 6: Final answer
x = 946,431.52
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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.