Finding the Fourth Proportional to 1,243,135.39, 1,714,905.79 and 784,817.95
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Solution
The fourth proportional to 1,243,135.39, 1,714,905.79 and 784,817.95 is: 1,082,656.69
Step by Step Solution
- Step 1: Write the proportion equation
1,243,135.39 : 1,714,905.79 = 784,817.95 : x - Step 2: Convert to fraction form
1,243,135.39/1,714,905.79 = 784,817.95/x - Step 3: Cross multiply
1,243,135.39x = 1,714,905.79 × 784,817.95 - Step 4: Simplify right side
1,243,135.39x = 1,345,888,846,550.93 - Step 5: Solve for x
x = 1,345,888,846,550.93/1,243,135.39 - Step 6: Final answer
x = 1,082,656.69
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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.