Finding the Fourth Proportional to 513,017.91, 769,490.37 and 157,994.91
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Solution
The fourth proportional to 513,017.91, 769,490.37 and 157,994.91 is: 236,981.13
Step by Step Solution
- Step 1: Write the proportion equation
513,017.91 : 769,490.37 = 157,994.91 : x - Step 2: Convert to fraction form
513,017.91/769,490.37 = 157,994.91/x - Step 3: Cross multiply
513,017.91x = 769,490.37 × 157,994.91 - Step 4: Simplify right side
513,017.91x = 121,575,561,754.02 - Step 5: Solve for x
x = 121,575,561,754.02/513,017.91 - Step 6: Final answer
x = 236,981.13
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.