Finding the Fourth Proportional to 1,291,935.58, 1,782,858.09 and 718,966.06
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Solution
The fourth proportional to 1,291,935.58, 1,782,858.09 and 718,966.06 is: 992,165.92
Step by Step Solution
- Step 1: Write the proportion equation
1,291,935.58 : 1,782,858.09 = 718,966.06 : x - Step 2: Convert to fraction form
1,291,935.58/1,782,858.09 = 718,966.06/x - Step 3: Cross multiply
1,291,935.58x = 1,782,858.09 × 718,966.06 - Step 4: Simplify right side
1,291,935.58x = 1,281,814,456,506.43 - Step 5: Solve for x
x = 1,281,814,456,506.43/1,291,935.58 - Step 6: Final answer
x = 992,165.92
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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.