Finding the Fourth Proportional to 3,129,797.07, 4,319,174.75 and 1,753,129.17
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Solution
The fourth proportional to 3,129,797.07, 4,319,174.75 and 1,753,129.17 is: 2,419,348.94
Step by Step Solution
- Step 1: Write the proportion equation
3,129,797.07 : 4,319,174.75 = 1,753,129.17 : x - Step 2: Convert to fraction form
3,129,797.07/4,319,174.75 = 1,753,129.17/x - Step 3: Cross multiply
3,129,797.07x = 4,319,174.75 × 1,753,129.17 - Step 4: Simplify right side
3,129,797.07x = 7,572,071,235,786.81 - Step 5: Solve for x
x = 7,572,071,235,786.81/3,129,797.07 - Step 6: Final answer
x = 2,419,348.94
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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.