Finding the Fourth Proportional to 936,554.36, 1,291,567.88 and 621,669.33
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Solution
The fourth proportional to 936,554.36, 1,291,567.88 and 621,669.33 is: 857,321.45
Step by Step Solution
- Step 1: Write the proportion equation
936,554.36 : 1,291,567.88 = 621,669.33 : x - Step 2: Convert to fraction form
936,554.36/1,291,567.88 = 621,669.33/x - Step 3: Cross multiply
936,554.36x = 1,291,567.88 × 621,669.33 - Step 4: Simplify right side
936,554.36x = 802,928,140,163.29 - Step 5: Solve for x
x = 802,928,140,163.29/936,554.36 - Step 6: Final answer
x = 857,321.45
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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.