Finding the Fourth Proportional to 1,252,836.99, 1,728,916.16 and 679,877.16
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Solution
The fourth proportional to 1,252,836.99, 1,728,916.16 and 679,877.16 is: 938,231.08
Step by Step Solution
- Step 1: Write the proportion equation
1,252,836.99 : 1,728,916.16 = 679,877.16 : x - Step 2: Convert to fraction form
1,252,836.99/1,728,916.16 = 679,877.16/x - Step 3: Cross multiply
1,252,836.99x = 1,728,916.16 × 679,877.16 - Step 4: Simplify right side
1,252,836.99x = 1,175,450,605,339.52 - Step 5: Solve for x
x = 1,175,450,605,339.52/1,252,836.99 - Step 6: Final answer
x = 938,231.08
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1.5x scale
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.