Finding the Fourth Proportional to 1,191,060.21, 1,643,673.47 and 647,195.99
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Solution
The fourth proportional to 1,191,060.21, 1,643,673.47 and 647,195.99 is: 893,136.11
Step by Step Solution
- Step 1: Write the proportion equation
1,191,060.21 : 1,643,673.47 = 647,195.99 : x - Step 2: Convert to fraction form
1,191,060.21/1,643,673.47 = 647,195.99/x - Step 3: Cross multiply
1,191,060.21x = 1,643,673.47 × 647,195.99 - Step 4: Simplify right side
1,191,060.21x = 1,063,778,878,653.39 - Step 5: Solve for x
x = 1,063,778,878,653.39/1,191,060.21 - Step 6: Final answer
x = 893,136.11
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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.