Finding the Fourth Proportional to 1,806,791.36, 2,493,384.33 and 991,000.74
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Solution
The fourth proportional to 1,806,791.36, 2,493,384.33 and 991,000.74 is: 1,367,587.75
Step by Step Solution
- Step 1: Write the proportion equation
1,806,791.36 : 2,493,384.33 = 991,000.74 : x - Step 2: Convert to fraction form
1,806,791.36/2,493,384.33 = 991,000.74/x - Step 3: Cross multiply
1,806,791.36x = 2,493,384.33 × 991,000.74 - Step 4: Simplify right side
1,806,791.36x = 2,470,945,716,134.40 - Step 5: Solve for x
x = 2,470,945,716,134.40/1,806,791.36 - Step 6: Final answer
x = 1,367,587.75
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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.