Finding the Fourth Proportional to 1,198,683.19, 1,654,161.95 and 654,805.01
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Solution
The fourth proportional to 1,198,683.19, 1,654,161.95 and 654,805.01 is: 903,619.53
Step by Step Solution
- Step 1: Write the proportion equation
1,198,683.19 : 1,654,161.95 = 654,805.01 : x - Step 2: Convert to fraction form
1,198,683.19/1,654,161.95 = 654,805.01/x - Step 3: Cross multiply
1,198,683.19x = 1,654,161.95 × 654,805.01 - Step 4: Simplify right side
1,198,683.19x = 1,083,153,537,983.79 - Step 5: Solve for x
x = 1,083,153,537,983.79/1,198,683.19 - Step 6: Final answer
x = 903,619.53
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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.