Finding the Fourth Proportional to 1,096,098.09, 1,512,614.83 and 643,389.09
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Solution
The fourth proportional to 1,096,098.09, 1,512,614.83 and 643,389.09 is: 887,876.63
Step by Step Solution
- Step 1: Write the proportion equation
1,096,098.09 : 1,512,614.83 = 643,389.09 : x - Step 2: Convert to fraction form
1,096,098.09/1,512,614.83 = 643,389.09/x - Step 3: Cross multiply
1,096,098.09x = 1,512,614.83 × 643,389.09 - Step 4: Simplify right side
1,096,098.09x = 973,199,883,237.77 - Step 5: Solve for x
x = 973,199,883,237.77/1,096,098.09 - Step 6: Final answer
x = 887,876.63
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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.