Finding the Fourth Proportional to 1,289,612.80, 1,933,497.60 and 579,059.20
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Solution
The fourth proportional to 1,289,612.80, 1,933,497.60 and 579,059.20 is: 868,174.99
Step by Step Solution
- Step 1: Write the proportion equation
1,289,612.80 : 1,933,497.60 = 579,059.20 : x - Step 2: Convert to fraction form
1,289,612.80/1,933,497.60 = 579,059.20/x - Step 3: Cross multiply
1,289,612.80x = 1,933,497.60 × 579,059.20 - Step 4: Simplify right side
1,289,612.80x = 1,119,609,573,457.92 - Step 5: Solve for x
x = 1,119,609,573,457.92/1,289,612.80 - Step 6: Final answer
x = 868,174.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.