Finding the Fourth Proportional to 1,190,968.19, 1,643,542.19 and 647,105.36
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Solution
The fourth proportional to 1,190,968.19, 1,643,542.19 and 647,105.36 is: 893,008.71
Step by Step Solution
- Step 1: Write the proportion equation
1,190,968.19 : 1,643,542.19 = 647,105.36 : x - Step 2: Convert to fraction form
1,190,968.19/1,643,542.19 = 647,105.36/x - Step 3: Cross multiply
1,190,968.19x = 1,643,542.19 × 647,105.36 - Step 4: Simplify right side
1,190,968.19x = 1,063,544,961,408.47 - Step 5: Solve for x
x = 1,063,544,961,408.47/1,190,968.19 - Step 6: Final answer
x = 893,008.71
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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.