Finding the Fourth Proportional to 1,151,883.12, 1,589,914.88 and 668,603.96
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Solution
The fourth proportional to 1,151,883.12, 1,589,914.88 and 668,603.96 is: 922,856.99
Step by Step Solution
- Step 1: Write the proportion equation
1,151,883.12 : 1,589,914.88 = 668,603.96 : x - Step 2: Convert to fraction form
1,151,883.12/1,589,914.88 = 668,603.96/x - Step 3: Cross multiply
1,151,883.12x = 1,589,914.88 × 668,603.96 - Step 4: Simplify right side
1,151,883.12x = 1,063,023,385,462.69 - Step 5: Solve for x
x = 1,063,023,385,462.69/1,151,883.12 - Step 6: Final answer
x = 922,856.99
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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.