Finding the Fourth Proportional to 1,316,531.70, 1,816,803.36 and 712,919.70
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Solution
The fourth proportional to 1,316,531.70, 1,816,803.36 and 712,919.70 is: 983,823.56
Step by Step Solution
- Step 1: Write the proportion equation
1,316,531.70 : 1,816,803.36 = 712,919.70 : x - Step 2: Convert to fraction form
1,316,531.70/1,816,803.36 = 712,919.70/x - Step 3: Cross multiply
1,316,531.70x = 1,816,803.36 × 712,919.70 - Step 4: Simplify right side
1,316,531.70x = 1,295,234,906,370.19 - Step 5: Solve for x
x = 1,295,234,906,370.19/1,316,531.70 - Step 6: Final answer
x = 983,823.56
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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.