Finding the Fourth Proportional to 1,189,153.14, 1,640,564.19 and 679,582.14
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Solution
The fourth proportional to 1,189,153.14, 1,640,564.19 and 679,582.14 is: 937,556.39
Step by Step Solution
- Step 1: Write the proportion equation
1,189,153.14 : 1,640,564.19 = 679,582.14 : x - Step 2: Convert to fraction form
1,189,153.14/1,640,564.19 = 679,582.14/x - Step 3: Cross multiply
1,189,153.14x = 1,640,564.19 × 679,582.14 - Step 4: Simplify right side
1,189,153.14x = 1,114,898,123,047.57 - Step 5: Solve for x
x = 1,114,898,123,047.57/1,189,153.14 - Step 6: Final answer
x = 937,556.39
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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.