Finding the Fourth Proportional to 1,266,392.14, 1,747,621.87 and 685,615.41
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Solution
The fourth proportional to 1,266,392.14, 1,747,621.87 and 685,615.41 is: 946,149.66
Step by Step Solution
- Step 1: Write the proportion equation
1,266,392.14 : 1,747,621.87 = 685,615.41 : x - Step 2: Convert to fraction form
1,266,392.14/1,747,621.87 = 685,615.41/x - Step 3: Cross multiply
1,266,392.14x = 1,747,621.87 × 685,615.41 - Step 4: Simplify right side
1,266,392.14x = 1,198,196,484,925.02 - Step 5: Solve for x
x = 1,198,196,484,925.02/1,266,392.14 - Step 6: Final answer
x = 946,149.66
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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.