Finding the Fourth Proportional to 1,391,630.80, 2,086,788.26 and 539,101.74
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Solution
The fourth proportional to 1,391,630.80, 2,086,788.26 and 539,101.74 is: 808,397.73
Step by Step Solution
- Step 1: Write the proportion equation
1,391,630.80 : 2,086,788.26 = 539,101.74 : x - Step 2: Convert to fraction form
1,391,630.80/2,086,788.26 = 539,101.74/x - Step 3: Cross multiply
1,391,630.80x = 2,086,788.26 × 539,101.74 - Step 4: Simplify right side
1,391,630.80x = 1,124,991,181,977.57 - Step 5: Solve for x
x = 1,124,991,181,977.57/1,391,630.80 - Step 6: Final answer
x = 808,397.73
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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.