Finding the Fourth Proportional to 1,578,846.07, 2,178,809.11 and 853,693.59
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Solution
The fourth proportional to 1,578,846.07, 2,178,809.11 and 853,693.59 is: 1,178,097.99
Step by Step Solution
- Step 1: Write the proportion equation
1,578,846.07 : 2,178,809.11 = 853,693.59 : x - Step 2: Convert to fraction form
1,578,846.07/2,178,809.11 = 853,693.59/x - Step 3: Cross multiply
1,578,846.07x = 2,178,809.11 × 853,693.59 - Step 4: Simplify right side
1,578,846.07x = 1,860,035,371,040.60 - Step 5: Solve for x
x = 1,860,035,371,040.60/1,578,846.07 - Step 6: Final answer
x = 1,178,097.99
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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.