Finding the Fourth Proportional to 1,128,206.99, 1,556,917.94 and 611,958.81
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Solution
The fourth proportional to 1,128,206.99, 1,556,917.94 and 611,958.81 is: 844,498.98
Step by Step Solution
- Step 1: Write the proportion equation
1,128,206.99 : 1,556,917.94 = 611,958.81 : x - Step 2: Convert to fraction form
1,128,206.99/1,556,917.94 = 611,958.81/x - Step 3: Cross multiply
1,128,206.99x = 1,556,917.94 × 611,958.81 - Step 4: Simplify right side
1,128,206.99x = 952,769,649,830.05 - Step 5: Solve for x
x = 952,769,649,830.05/1,128,206.99 - Step 6: Final answer
x = 844,498.98
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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.