Finding the Fourth Proportional to 1,919,806.36, 2,879,394.30 and 640,423.66
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Solution
The fourth proportional to 1,919,806.36, 2,879,394.30 and 640,423.66 is: 960,530.33
Step by Step Solution
- Step 1: Write the proportion equation
1,919,806.36 : 2,879,394.30 = 640,423.66 : x - Step 2: Convert to fraction form
1,919,806.36/2,879,394.30 = 640,423.66/x - Step 3: Cross multiply
1,919,806.36x = 2,879,394.30 × 640,423.66 - Step 4: Simplify right side
1,919,806.36x = 1,844,032,236,189.14 - Step 5: Solve for x
x = 1,844,032,236,189.14/1,919,806.36 - Step 6: Final answer
x = 960,530.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.