Finding the Fourth Proportional to 1,272,743.28, 1,756,369.98 and 699,778.44
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Solution
The fourth proportional to 1,272,743.28, 1,756,369.98 and 699,778.44 is: 965,685.59
Step by Step Solution
- Step 1: Write the proportion equation
1,272,743.28 : 1,756,369.98 = 699,778.44 : x - Step 2: Convert to fraction form
1,272,743.28/1,756,369.98 = 699,778.44/x - Step 3: Cross multiply
1,272,743.28x = 1,756,369.98 × 699,778.44 - Step 4: Simplify right side
1,272,743.28x = 1,229,069,844,667.23 - Step 5: Solve for x
x = 1,229,069,844,667.23/1,272,743.28 - Step 6: Final answer
x = 965,685.59
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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.