Finding the Fourth Proportional to 722,454, 1,083,681 and 197,142
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Solution
The fourth proportional to 722,454, 1,083,681 and 197,142 is: 295,713
Step by Step Solution
- Step 1: Write the proportion equation
722,454 : 1,083,681 = 197,142 : x - Step 2: Convert to fraction form
722,454/1,083,681 = 197,142/x - Step 3: Cross multiply
722,454x = 1,083,681 × 197,142 - Step 4: Simplify right side
722,454x = 213,639,039,702 - Step 5: Solve for x
x = 213,639,039,702/722,454 - Step 6: Final answer
x = 295,713
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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.