Finding the Fourth Proportional to 1,257,814.05, 1,735,766.05 and 684,854.21
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Solution
The fourth proportional to 1,257,814.05, 1,735,766.05 and 684,854.21 is: 945,089.37
Step by Step Solution
- Step 1: Write the proportion equation
1,257,814.05 : 1,735,766.05 = 684,854.21 : x - Step 2: Convert to fraction form
1,257,814.05/1,735,766.05 = 684,854.21/x - Step 3: Cross multiply
1,257,814.05x = 1,735,766.05 × 684,854.21 - Step 4: Simplify right side
1,257,814.05x = 1,188,746,686,917.57 - Step 5: Solve for x
x = 1,188,746,686,917.57/1,257,814.05 - Step 6: Final answer
x = 945,089.37
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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.