Finding the Fourth Proportional to 1,137,532.26, 1,569,803.85 and 628,243.14
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Solution
The fourth proportional to 1,137,532.26, 1,569,803.85 and 628,243.14 is: 866,980.69
Step by Step Solution
- Step 1: Write the proportion equation
1,137,532.26 : 1,569,803.85 = 628,243.14 : x - Step 2: Convert to fraction form
1,137,532.26/1,569,803.85 = 628,243.14/x - Step 3: Cross multiply
1,137,532.26x = 1,569,803.85 × 628,243.14 - Step 4: Simplify right side
1,137,532.26x = 986,218,499,908.09 - Step 5: Solve for x
x = 986,218,499,908.09/1,137,532.26 - Step 6: Final answer
x = 866,980.69
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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.