Finding the Fourth Proportional to 1,257,813.05, 1,735,764.68 and 684,853.21
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Solution
The fourth proportional to 1,257,813.05, 1,735,764.68 and 684,853.21 is: 945,087.98
Step by Step Solution
- Step 1: Write the proportion equation
1,257,813.05 : 1,735,764.68 = 684,853.21 : x - Step 2: Convert to fraction form
1,257,813.05/1,735,764.68 = 684,853.21/x - Step 3: Cross multiply
1,257,813.05x = 1,735,764.68 × 684,853.21 - Step 4: Simplify right side
1,257,813.05x = 1,188,744,000,799.53 - Step 5: Solve for x
x = 1,188,744,000,799.53/1,257,813.05 - Step 6: Final answer
x = 945,087.98
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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.