Finding the Fourth Proportional to 1,198,644.92, 1,654,180.27 and 689,347.70
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Solution
The fourth proportional to 1,198,644.92, 1,654,180.27 and 689,347.70 is: 951,328.74
Step by Step Solution
- Step 1: Write the proportion equation
1,198,644.92 : 1,654,180.27 = 689,347.70 : x - Step 2: Convert to fraction form
1,198,644.92/1,654,180.27 = 689,347.70/x - Step 3: Cross multiply
1,198,644.92x = 1,654,180.27 × 689,347.70 - Step 4: Simplify right side
1,198,644.92x = 1,140,305,364,509.88 - Step 5: Solve for x
x = 1,140,305,364,509.88/1,198,644.92 - Step 6: Final answer
x = 951,328.74
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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.