Finding the Fourth Proportional to 1,285,354.17, 1,773,790.19 and 712,394.80
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Solution
The fourth proportional to 1,285,354.17, 1,773,790.19 and 712,394.80 is: 983,105.62
Step by Step Solution
- Step 1: Write the proportion equation
1,285,354.17 : 1,773,790.19 = 712,394.80 : x - Step 2: Convert to fraction form
1,285,354.17/1,773,790.19 = 712,394.80/x - Step 3: Cross multiply
1,285,354.17x = 1,773,790.19 × 712,394.80 - Step 4: Simplify right side
1,285,354.17x = 1,263,638,906,329.26 - Step 5: Solve for x
x = 1,263,638,906,329.26/1,285,354.17 - Step 6: Final answer
x = 983,105.62
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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.