Finding the Fourth Proportional to 1,128,824.94, 1,557,777.15 and 619,528.62
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Solution
The fourth proportional to 1,128,824.94, 1,557,777.15 and 619,528.62 is: 854,948.80
Step by Step Solution
- Step 1: Write the proportion equation
1,128,824.94 : 1,557,777.15 = 619,528.62 : x - Step 2: Convert to fraction form
1,128,824.94/1,557,777.15 = 619,528.62/x - Step 3: Cross multiply
1,128,824.94x = 1,557,777.15 × 619,528.62 - Step 4: Simplify right side
1,128,824.94x = 965,087,528,007.03 - Step 5: Solve for x
x = 965,087,528,007.03/1,128,824.94 - Step 6: Final answer
x = 854,948.80
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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.