Finding the Fourth Proportional to 1,292,101.60, 1,783,135.20 and 719,204.80
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Solution
The fourth proportional to 1,292,101.60, 1,783,135.20 and 719,204.80 is: 992,522.10
Step by Step Solution
- Step 1: Write the proportion equation
1,292,101.60 : 1,783,135.20 = 719,204.80 : x - Step 2: Convert to fraction form
1,292,101.60/1,783,135.20 = 719,204.80/x - Step 3: Cross multiply
1,292,101.60x = 1,783,135.20 × 719,204.80 - Step 4: Simplify right side
1,292,101.60x = 1,282,439,394,888.96 - Step 5: Solve for x
x = 1,282,439,394,888.96/1,292,101.60 - Step 6: Final answer
x = 992,522.10
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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.