Finding the Fourth Proportional to 936,662.42, 1,291,716.84 and 621,777.38
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Solution
The fourth proportional to 936,662.42, 1,291,716.84 and 621,777.38 is: 857,470.41
Step by Step Solution
- Step 1: Write the proportion equation
936,662.42 : 1,291,716.84 = 621,777.38 : x - Step 2: Convert to fraction form
936,662.42/1,291,716.84 = 621,777.38/x - Step 3: Cross multiply
936,662.42x = 1,291,716.84 × 621,777.38 - Step 4: Simplify right side
936,662.42x = 803,160,312,477.08 - Step 5: Solve for x
x = 803,160,312,477.08/936,662.42 - Step 6: Final answer
x = 857,470.41
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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.