Finding the Fourth Proportional to 2,109,934.77, 3,164,902.19 and 512,487.09
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Solution
The fourth proportional to 2,109,934.77, 3,164,902.19 and 512,487.09 is: 768,730.64
Step by Step Solution
- Step 1: Write the proportion equation
2,109,934.77 : 3,164,902.19 = 512,487.09 : x - Step 2: Convert to fraction form
2,109,934.77/3,164,902.19 = 512,487.09/x - Step 3: Cross multiply
2,109,934.77x = 3,164,902.19 × 512,487.09 - Step 4: Simplify right side
2,109,934.77x = 1,621,971,512,847.12 - Step 5: Solve for x
x = 1,621,971,512,847.12/2,109,934.77 - Step 6: Final answer
x = 768,730.64
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1.5x scale
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.