Finding the Fourth Proportional to 1,444,745.82, 1,991,858.58 and 1,242,964.11
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Solution
The fourth proportional to 1,444,745.82, 1,991,858.58 and 1,242,964.11 is: 1,713,663.88
Step by Step Solution
- Step 1: Write the proportion equation
1,444,745.82 : 1,991,858.58 = 1,242,964.11 : x - Step 2: Convert to fraction form
1,444,745.82/1,991,858.58 = 1,242,964.11/x - Step 3: Cross multiply
1,444,745.82x = 1,991,858.58 × 1,242,964.11 - Step 4: Simplify right side
1,444,745.82x = 2,475,808,727,135.56 - Step 5: Solve for x
x = 2,475,808,727,135.56/1,444,745.82 - Step 6: Final answer
x = 1,713,663.88
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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.