Finding the Fourth Proportional to 1,431,176.85, 1,975,028.36 and 786,663.09
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Solution
The fourth proportional to 1,431,176.85, 1,975,028.36 and 786,663.09 is: 1,085,597.43
Step by Step Solution
- Step 1: Write the proportion equation
1,431,176.85 : 1,975,028.36 = 786,663.09 : x - Step 2: Convert to fraction form
1,431,176.85/1,975,028.36 = 786,663.09/x - Step 3: Cross multiply
1,431,176.85x = 1,975,028.36 × 786,663.09 - Step 4: Simplify right side
1,431,176.85x = 1,553,681,908,581.92 - Step 5: Solve for x
x = 1,553,681,908,581.92/1,431,176.85 - Step 6: Final answer
x = 1,085,597.43
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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.