Finding the Fourth Proportional to 1,174,765.16, 1,621,137.69 and 691,356.75
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Solution
The fourth proportional to 1,174,765.16, 1,621,137.69 and 691,356.75 is: 954,049.82
Step by Step Solution
- Step 1: Write the proportion equation
1,174,765.16 : 1,621,137.69 = 691,356.75 : x - Step 2: Convert to fraction form
1,174,765.16/1,621,137.69 = 691,356.75/x - Step 3: Cross multiply
1,174,765.16x = 1,621,137.69 × 691,356.75 - Step 4: Simplify right side
1,174,765.16x = 1,120,784,484,660.91 - Step 5: Solve for x
x = 1,120,784,484,660.91/1,174,765.16 - Step 6: Final answer
x = 954,049.82
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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.