Finding the Fourth Proportional to 717,467.09, 990,067.19 and 445,529.16
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Solution
The fourth proportional to 717,467.09, 990,067.19 and 445,529.16 is: 614,807.02
Step by Step Solution
- Step 1: Write the proportion equation
717,467.09 : 990,067.19 = 445,529.16 : x - Step 2: Convert to fraction form
717,467.09/990,067.19 = 445,529.16/x - Step 3: Cross multiply
717,467.09x = 990,067.19 × 445,529.16 - Step 4: Simplify right side
717,467.09x = 441,103,801,276.62 - Step 5: Solve for x
x = 441,103,801,276.62/717,467.09 - Step 6: Final answer
x = 614,807.02
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1.5x scale
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.