Finding the Fourth Proportional to 1,430,897.95, 1,974,208.57 and 857,728.99
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Solution
The fourth proportional to 1,430,897.95, 1,974,208.57 and 857,728.99 is: 1,183,407.89
Step by Step Solution
- Step 1: Write the proportion equation
1,430,897.95 : 1,974,208.57 = 857,728.99 : x - Step 2: Convert to fraction form
1,430,897.95/1,974,208.57 = 857,728.99/x - Step 3: Cross multiply
1,430,897.95x = 1,974,208.57 × 857,728.99 - Step 4: Simplify right side
1,430,897.95x = 1,693,335,922,795.44 - Step 5: Solve for x
x = 1,693,335,922,795.44/1,430,897.95 - Step 6: Final answer
x = 1,183,407.89
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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.