Finding the Fourth Proportional to 1,918,723.14, 2,877,120.81 and 638,878.19
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Solution
The fourth proportional to 1,918,723.14, 2,877,120.81 and 638,878.19 is: 957,996.33
Step by Step Solution
- Step 1: Write the proportion equation
1,918,723.14 : 2,877,120.81 = 638,878.19 : x - Step 2: Convert to fraction form
1,918,723.14/2,877,120.81 = 638,878.19/x - Step 3: Cross multiply
1,918,723.14x = 2,877,120.81 × 638,878.19 - Step 4: Simplify right side
1,918,723.14x = 1,838,129,721,118.53 - Step 5: Solve for x
x = 1,838,129,721,118.53/1,918,723.14 - Step 6: Final answer
x = 957,996.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.