Finding the Fourth Proportional to 1,217,311, 1,825,609.50 and 458,605
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Solution
The fourth proportional to 1,217,311, 1,825,609.50 and 458,605 is: 687,773.01
Step by Step Solution
- Step 1: Write the proportion equation
1,217,311 : 1,825,609.50 = 458,605 : x - Step 2: Convert to fraction form
1,217,311/1,825,609.50 = 458,605/x - Step 3: Cross multiply
1,217,311x = 1,825,609.50 × 458,605 - Step 4: Simplify right side
1,217,311x = 837,233,644,747.50 - Step 5: Solve for x
x = 837,233,644,747.50/1,217,311 - Step 6: Final answer
x = 687,773.01
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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.