Finding the Fourth Proportional to 939,416, 1,296,356.26 and 509,679.68
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Solution
The fourth proportional to 939,416, 1,296,356.26 and 509,679.68 is: 703,337.44
Step by Step Solution
- Step 1: Write the proportion equation
939,416 : 1,296,356.26 = 509,679.68 : x - Step 2: Convert to fraction form
939,416/1,296,356.26 = 509,679.68/x - Step 3: Cross multiply
939,416x = 1,296,356.26 × 509,679.68 - Step 4: Simplify right side
939,416x = 660,726,443,762.80 - Step 5: Solve for x
x = 660,726,443,762.80/939,416 - Step 6: Final answer
x = 703,337.44
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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.