Finding the Fourth Proportional to 1,398,412.62, 1,929,866.97 and 786,593.82
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Solution
The fourth proportional to 1,398,412.62, 1,929,866.97 and 786,593.82 is: 1,085,531.85
Step by Step Solution
- Step 1: Write the proportion equation
1,398,412.62 : 1,929,866.97 = 786,593.82 : x - Step 2: Convert to fraction form
1,398,412.62/1,929,866.97 = 786,593.82/x - Step 3: Cross multiply
1,398,412.62x = 1,929,866.97 × 786,593.82 - Step 4: Simplify right side
1,398,412.62x = 1,518,021,432,024.13 - Step 5: Solve for x
x = 1,518,021,432,024.13/1,398,412.62 - Step 6: Final answer
x = 1,085,531.85
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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.