Finding the Fourth Proportional to 2,126,328.21, 3,189,486.15 and 528,891.39
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Solution
The fourth proportional to 2,126,328.21, 3,189,486.15 and 528,891.39 is: 793,335.55
Step by Step Solution
- Step 1: Write the proportion equation
2,126,328.21 : 3,189,486.15 = 528,891.39 : x - Step 2: Convert to fraction form
2,126,328.21/3,189,486.15 = 528,891.39/x - Step 3: Cross multiply
2,126,328.21x = 3,189,486.15 × 528,891.39 - Step 4: Simplify right side
2,126,328.21x = 1,686,891,763,259.25 - Step 5: Solve for x
x = 1,686,891,763,259.25/2,126,328.21 - Step 6: Final answer
x = 793,335.55
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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.