Finding the Fourth Proportional to 1,386,681, 2,080,021.50 and 336,057
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Solution
The fourth proportional to 1,386,681, 2,080,021.50 and 336,057 is: 504,085.50
Step by Step Solution
- Step 1: Write the proportion equation
1,386,681 : 2,080,021.50 = 336,057 : x - Step 2: Convert to fraction form
1,386,681/2,080,021.50 = 336,057/x - Step 3: Cross multiply
1,386,681x = 2,080,021.50 × 336,057 - Step 4: Simplify right side
1,386,681x = 699,005,785,225.50 - Step 5: Solve for x
x = 699,005,785,225.50/1,386,681 - Step 6: Final answer
x = 504,085.50
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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.