Finding the Fourth Proportional to 1,912,646.75, 2,867,638.47 and 847,111.19
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Solution
The fourth proportional to 1,912,646.75, 2,867,638.47 and 847,111.19 is: 1,270,076.99
Step by Step Solution
- Step 1: Write the proportion equation
1,912,646.75 : 2,867,638.47 = 847,111.19 : x - Step 2: Convert to fraction form
1,912,646.75/2,867,638.47 = 847,111.19/x - Step 3: Cross multiply
1,912,646.75x = 2,867,638.47 × 847,111.19 - Step 4: Simplify right side
1,912,646.75x = 2,429,208,622,473.29 - Step 5: Solve for x
x = 2,429,208,622,473.29/1,912,646.75 - Step 6: Final answer
x = 1,270,076.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.