Finding the Fourth Proportional to 439,143.21, 605,989.49 and 245,566.88
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Solution
The fourth proportional to 439,143.21, 605,989.49 and 245,566.88 is: 338,866.55
Step by Step Solution
- Step 1: Write the proportion equation
439,143.21 : 605,989.49 = 245,566.88 : x - Step 2: Convert to fraction form
439,143.21/605,989.49 = 245,566.88/x - Step 3: Cross multiply
439,143.21x = 605,989.49 × 245,566.88 - Step 4: Simplify right side
439,143.21x = 148,810,944,114.31 - Step 5: Solve for x
x = 148,810,944,114.31/439,143.21 - Step 6: Final answer
x = 338,866.55
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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.