Finding the Fourth Proportional to 1,578,918.39, 2,178,905.84 and 853,764.38
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Solution
The fourth proportional to 1,578,918.39, 2,178,905.84 and 853,764.38 is: 1,178,194.01
Step by Step Solution
- Step 1: Write the proportion equation
1,578,918.39 : 2,178,905.84 = 853,764.38 : x - Step 2: Convert to fraction form
1,578,918.39/2,178,905.84 = 853,764.38/x - Step 3: Cross multiply
1,578,918.39x = 2,178,905.84 × 853,764.38 - Step 4: Simplify right side
1,578,918.39x = 1,860,272,201,147.65 - Step 5: Solve for x
x = 1,860,272,201,147.65/1,578,918.39 - Step 6: Final answer
x = 1,178,194.01
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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.