Finding the Fourth Proportional to 929,813.80, 1,394,720.70 and 929,813.80
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Solution
The fourth proportional to 929,813.80, 1,394,720.70 and 929,813.80 is: 1,394,720.70
Step by Step Solution
- Step 1: Write the proportion equation
929,813.80 : 1,394,720.70 = 929,813.80 : x - Step 2: Convert to fraction form
929,813.80/1,394,720.70 = 929,813.80/x - Step 3: Cross multiply
929,813.80x = 1,394,720.70 × 929,813.80 - Step 4: Simplify right side
929,813.80x = 1,296,830,554,005.66 - Step 5: Solve for x
x = 1,296,830,554,005.66/929,813.80 - Step 6: Final answer
x = 1,394,720.70
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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.