Finding the Fourth Proportional to 1,692,581.11, 2,538,888.08 and 430,408.74
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Solution
The fourth proportional to 1,692,581.11, 2,538,888.08 and 430,408.74 is: 645,617.28
Step by Step Solution
- Step 1: Write the proportion equation
1,692,581.11 : 2,538,888.08 = 430,408.74 : x - Step 2: Convert to fraction form
1,692,581.11/2,538,888.08 = 430,408.74/x - Step 3: Cross multiply
1,692,581.11x = 2,538,888.08 × 430,408.74 - Step 4: Simplify right side
1,692,581.11x = 1,092,759,619,513.82 - Step 5: Solve for x
x = 1,092,759,619,513.82/1,692,581.11 - Step 6: Final answer
x = 645,617.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.