Finding the Fourth Proportional to 1,291,884.36, 1,936,523.87 and 812,454.79
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Solution
The fourth proportional to 1,291,884.36, 1,936,523.87 and 812,454.79 is: 1,217,862.94
Step by Step Solution
- Step 1: Write the proportion equation
1,291,884.36 : 1,936,523.87 = 812,454.79 : x - Step 2: Convert to fraction form
1,291,884.36/1,936,523.87 = 812,454.79/x - Step 3: Cross multiply
1,291,884.36x = 1,936,523.87 × 812,454.79 - Step 4: Simplify right side
1,291,884.36x = 1,573,338,084,448.22 - Step 5: Solve for x
x = 1,573,338,084,448.22/1,291,884.36 - Step 6: Final answer
x = 1,217,862.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.