Finding the Fourth Proportional to 1,173,073.60, 1,618,006.75 and 1,076,589.09
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Solution
The fourth proportional to 1,173,073.60, 1,618,006.75 and 1,076,589.09 is: 1,484,926.79
Step by Step Solution
- Step 1: Write the proportion equation
1,173,073.60 : 1,618,006.75 = 1,076,589.09 : x - Step 2: Convert to fraction form
1,173,073.60/1,618,006.75 = 1,076,589.09/x - Step 3: Cross multiply
1,173,073.60x = 1,618,006.75 × 1,076,589.09 - Step 4: Simplify right side
1,173,073.60x = 1,741,928,414,596.36 - Step 5: Solve for x
x = 1,741,928,414,596.36/1,173,073.60 - Step 6: Final answer
x = 1,484,926.79
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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.