Finding the Fourth Proportional to 1,288,156.56, 1,777,659.84 and 715,198.08
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Solution
The fourth proportional to 1,288,156.56, 1,777,659.84 and 715,198.08 is: 986,975.45
Step by Step Solution
- Step 1: Write the proportion equation
1,288,156.56 : 1,777,659.84 = 715,198.08 : x - Step 2: Convert to fraction form
1,288,156.56/1,777,659.84 = 715,198.08/x - Step 3: Cross multiply
1,288,156.56x = 1,777,659.84 × 715,198.08 - Step 4: Simplify right side
1,288,156.56x = 1,271,378,904,461.11 - Step 5: Solve for x
x = 1,271,378,904,461.11/1,288,156.56 - Step 6: Final answer
x = 986,975.45
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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.