Finding the Fourth Proportional to 1,398,070.83, 1,929,319.41 and 786,223.41
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Solution
The fourth proportional to 1,398,070.83, 1,929,319.41 and 786,223.41 is: 1,084,977.99
Step by Step Solution
- Step 1: Write the proportion equation
1,398,070.83 : 1,929,319.41 = 786,223.41 : x - Step 2: Convert to fraction form
1,398,070.83/1,929,319.41 = 786,223.41/x - Step 3: Cross multiply
1,398,070.83x = 1,929,319.41 × 786,223.41 - Step 4: Simplify right side
1,398,070.83x = 1,516,876,081,222.78 - Step 5: Solve for x
x = 1,516,876,081,222.78/1,398,070.83 - Step 6: Final answer
x = 1,084,977.99
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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.