Finding the Fourth Proportional to 1,128,841.44, 1,557,799.92 and 619,545.12
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Solution
The fourth proportional to 1,128,841.44, 1,557,799.92 and 619,545.12 is: 854,971.57
Step by Step Solution
- Step 1: Write the proportion equation
1,128,841.44 : 1,557,799.92 = 619,545.12 : x - Step 2: Convert to fraction form
1,128,841.44/1,557,799.92 = 619,545.12/x - Step 3: Cross multiply
1,128,841.44x = 1,557,799.92 × 619,545.12 - Step 4: Simplify right side
1,128,841.44x = 965,127,338,372.39 - Step 5: Solve for x
x = 965,127,338,372.39/1,128,841.44 - Step 6: Final answer
x = 854,971.57
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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.