Finding the Fourth Proportional to 623,586.99, 860,687.79 and 405,415.97
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Solution
The fourth proportional to 623,586.99, 860,687.79 and 405,415.97 is: 559,563.59
Step by Step Solution
- Step 1: Write the proportion equation
623,586.99 : 860,687.79 = 405,415.97 : x - Step 2: Convert to fraction form
623,586.99/860,687.79 = 405,415.97/x - Step 3: Cross multiply
623,586.99x = 860,687.79 × 405,415.97 - Step 4: Simplify right side
623,586.99x = 348,936,575,250.01 - Step 5: Solve for x
x = 348,936,575,250.01/623,586.99 - Step 6: Final answer
x = 559,563.59
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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.