Finding the Fourth Proportional to 936,553.09, 1,291,566.17 and 621,668.07
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Solution
The fourth proportional to 936,553.09, 1,291,566.17 and 621,668.07 is: 857,319.74
Step by Step Solution
- Step 1: Write the proportion equation
936,553.09 : 1,291,566.17 = 621,668.07 : x - Step 2: Convert to fraction form
936,553.09/1,291,566.17 = 621,668.07/x - Step 3: Cross multiply
936,553.09x = 1,291,566.17 × 621,668.07 - Step 4: Simplify right side
936,553.09x = 802,925,448,181.19 - Step 5: Solve for x
x = 802,925,448,181.19/936,553.09 - Step 6: Final answer
x = 857,319.74
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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.