Finding the Fourth Proportional to 663,762.68, 915,977.29 and 405,638.61
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Solution
The fourth proportional to 663,762.68, 915,977.29 and 405,638.61 is: 559,771.99
Step by Step Solution
- Step 1: Write the proportion equation
663,762.68 : 915,977.29 = 405,638.61 : x - Step 2: Convert to fraction form
663,762.68/915,977.29 = 405,638.61/x - Step 3: Cross multiply
663,762.68x = 915,977.29 × 405,638.61 - Step 4: Simplify right side
663,762.68x = 371,555,754,707.17 - Step 5: Solve for x
x = 371,555,754,707.17/663,762.68 - Step 6: Final answer
x = 559,771.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.