Finding the Fourth Proportional to 1,156,431.09, 1,595,887.46 and 640,193.53
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Solution
The fourth proportional to 1,156,431.09, 1,595,887.46 and 640,193.53 is: 883,474.02
Step by Step Solution
- Step 1: Write the proportion equation
1,156,431.09 : 1,595,887.46 = 640,193.53 : x - Step 2: Convert to fraction form
1,156,431.09/1,595,887.46 = 640,193.53/x - Step 3: Cross multiply
1,156,431.09x = 1,595,887.46 × 640,193.53 - Step 4: Simplify right side
1,156,431.09x = 1,021,676,823,299.17 - Step 5: Solve for x
x = 1,021,676,823,299.17/1,156,431.09 - Step 6: Final answer
x = 883,474.02
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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.