Finding the Fourth Proportional to 1,921,243.18, 2,651,228.46 and 1,186,525.99
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Solution
The fourth proportional to 1,921,243.18, 2,651,228.46 and 1,186,525.99 is: 1,637,352.06
Step by Step Solution
- Step 1: Write the proportion equation
1,921,243.18 : 2,651,228.46 = 1,186,525.99 : x - Step 2: Convert to fraction form
1,921,243.18/2,651,228.46 = 1,186,525.99/x - Step 3: Cross multiply
1,921,243.18x = 2,651,228.46 × 1,186,525.99 - Step 4: Simplify right side
1,921,243.18x = 3,145,751,473,217.68 - Step 5: Solve for x
x = 3,145,751,473,217.68/1,921,243.18 - Step 6: Final answer
x = 1,637,352.06
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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.