Finding the Fourth Proportional to 686,086,029.44, 946,798,000.32 and 372,819,498.16
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Solution
The fourth proportional to 686,086,029.44, 946,798,000.32 and 372,819,498.16 is: 514,490,516.05
Step by Step Solution
- Step 1: Write the proportion equation
686,086,029.44 : 946,798,000.32 = 372,819,498.16 : x - Step 2: Convert to fraction form
686,086,029.44/946,798,000.32 = 372,819,498.16/x - Step 3: Cross multiply
686,086,029.44x = 946,798,000.32 × 372,819,498.16 - Step 4: Simplify right side
686,086,029.44x = 352,984,755,338,193,984 - Step 5: Solve for x
x = 352,984,755,338,193,984/686,086,029.44 - Step 6: Final answer
x = 514,490,516.05
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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.