Finding the Fourth Proportional to 1,125,457.65, 1,553,279.46 and 641,911.95
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Solution
The fourth proportional to 1,125,457.65, 1,553,279.46 and 641,911.95 is: 885,922.85
Step by Step Solution
- Step 1: Write the proportion equation
1,125,457.65 : 1,553,279.46 = 641,911.95 : x - Step 2: Convert to fraction form
1,125,457.65/1,553,279.46 = 641,911.95/x - Step 3: Cross multiply
1,125,457.65x = 1,553,279.46 × 641,911.95 - Step 4: Simplify right side
1,125,457.65x = 997,068,647,063.55 - Step 5: Solve for x
x = 997,068,647,063.55/1,125,457.65 - Step 6: Final answer
x = 885,922.85
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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.