Finding the Fourth Proportional to 1,639,811.16, 2,458,555.20 and 728,493.12
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Solution
The fourth proportional to 1,639,811.16, 2,458,555.20 and 728,493.12 is: 1,092,223.66
Step by Step Solution
- Step 1: Write the proportion equation
1,639,811.16 : 2,458,555.20 = 728,493.12 : x - Step 2: Convert to fraction form
1,639,811.16/2,458,555.20 = 728,493.12/x - Step 3: Cross multiply
1,639,811.16x = 2,458,555.20 × 728,493.12 - Step 4: Simplify right side
1,639,811.16x = 1,791,040,548,340.22 - Step 5: Solve for x
x = 1,791,040,548,340.22/1,639,811.16 - Step 6: Final answer
x = 1,092,223.66
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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.