Finding the Fourth Proportional to 1,391,337.51, 2,086,904.21 and 444,453.99
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Solution
The fourth proportional to 1,391,337.51, 2,086,904.21 and 444,453.99 is: 666,648.38
Step by Step Solution
- Step 1: Write the proportion equation
1,391,337.51 : 2,086,904.21 = 444,453.99 : x - Step 2: Convert to fraction form
1,391,337.51/2,086,904.21 = 444,453.99/x - Step 3: Cross multiply
1,391,337.51x = 2,086,904.21 × 444,453.99 - Step 4: Simplify right side
1,391,337.51x = 927,532,900,660.03 - Step 5: Solve for x
x = 927,532,900,660.03/1,391,337.51 - Step 6: Final answer
x = 666,648.38
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1.5x scale
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.