Finding the Fourth Proportional to 1,393,823.16, 1,921,439.97 and 985,204.08
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Solution
The fourth proportional to 1,393,823.16, 1,921,439.97 and 985,204.08 is: 1,358,142.52
Step by Step Solution
- Step 1: Write the proportion equation
1,393,823.16 : 1,921,439.97 = 985,204.08 : x - Step 2: Convert to fraction form
1,393,823.16/1,921,439.97 = 985,204.08/x - Step 3: Cross multiply
1,393,823.16x = 1,921,439.97 × 985,204.08 - Step 4: Simplify right side
1,393,823.16x = 1,893,010,497,919.08 - Step 5: Solve for x
x = 1,893,010,497,919.08/1,393,823.16 - Step 6: Final answer
x = 1,358,142.52
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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.