Finding the Fourth Proportional to 1,586,623.12, 2,189,577.95 and 861,501.40
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Solution
The fourth proportional to 1,586,623.12, 2,189,577.95 and 861,501.40 is: 1,188,892.59
Step by Step Solution
- Step 1: Write the proportion equation
1,586,623.12 : 2,189,577.95 = 861,501.40 : x - Step 2: Convert to fraction form
1,586,623.12/2,189,577.95 = 861,501.40/x - Step 3: Cross multiply
1,586,623.12x = 2,189,577.95 × 861,501.40 - Step 4: Simplify right side
1,586,623.12x = 1,886,324,469,334.13 - Step 5: Solve for x
x = 1,886,324,469,334.13/1,586,623.12 - Step 6: Final answer
x = 1,188,892.59
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.