Finding the Fourth Proportional to 1,611,780.12, 2,224,261.71 and 886,682.97
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Solution
The fourth proportional to 1,611,780.12, 2,224,261.71 and 886,682.97 is: 1,223,625.33
Step by Step Solution
- Step 1: Write the proportion equation
1,611,780.12 : 2,224,261.71 = 886,682.97 : x - Step 2: Convert to fraction form
1,611,780.12/2,224,261.71 = 886,682.97/x - Step 3: Cross multiply
1,611,780.12x = 2,224,261.71 × 886,682.97 - Step 4: Simplify right side
1,611,780.12x = 1,972,214,979,080.08 - Step 5: Solve for x
x = 1,972,214,979,080.08/1,611,780.12 - Step 6: Final answer
x = 1,223,625.33
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1.5x scale
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.