Finding the Fourth Proportional to 1,173,170.14, 1,618,974.78 and 636,626.14
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Solution
The fourth proportional to 1,173,170.14, 1,618,974.78 and 636,626.14 is: 878,544.07
Step by Step Solution
- Step 1: Write the proportion equation
1,173,170.14 : 1,618,974.78 = 636,626.14 : x - Step 2: Convert to fraction form
1,173,170.14/1,618,974.78 = 636,626.14/x - Step 3: Cross multiply
1,173,170.14x = 1,618,974.78 × 636,626.14 - Step 4: Simplify right side
1,173,170.14x = 1,030,681,664,948.75 - Step 5: Solve for x
x = 1,030,681,664,948.75/1,173,170.14 - Step 6: Final answer
x = 878,544.07
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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.