Finding the Fourth Proportional to 386,785.18, 533,755.11 and 214,693.03
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Solution
The fourth proportional to 386,785.18, 533,755.11 and 214,693.03 is: 296,271.70
Step by Step Solution
- Step 1: Write the proportion equation
386,785.18 : 533,755.11 = 214,693.03 : x - Step 2: Convert to fraction form
386,785.18/533,755.11 = 214,693.03/x - Step 3: Cross multiply
386,785.18x = 533,755.11 × 214,693.03 - Step 4: Simplify right side
386,785.18x = 114,593,501,843.88 - Step 5: Solve for x
x = 114,593,501,843.88/386,785.18 - Step 6: Final answer
x = 296,271.70
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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.