Finding the Fourth Proportional to 1,352,972.09, 1,866,393.61 and 836,560.91
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Solution
The fourth proportional to 1,352,972.09, 1,866,393.61 and 836,560.91 is: 1,154,016.37
Step by Step Solution
- Step 1: Write the proportion equation
1,352,972.09 : 1,866,393.61 = 836,560.91 : x - Step 2: Convert to fraction form
1,352,972.09/1,866,393.61 = 836,560.91/x - Step 3: Cross multiply
1,352,972.09x = 1,866,393.61 × 836,560.91 - Step 4: Simplify right side
1,352,972.09x = 1,561,351,936,799.79 - Step 5: Solve for x
x = 1,561,351,936,799.79/1,352,972.09 - Step 6: Final answer
x = 1,154,016.37
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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.