Finding the Fourth Proportional to 691,216,986.49, 1,036,826,477.63 and 282,273,136.99
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Solution
The fourth proportional to 691,216,986.49, 1,036,826,477.63 and 282,273,136.99 is: 423,410,113.00
Step by Step Solution
- Step 1: Write the proportion equation
691,216,986.49 : 1,036,826,477.63 = 282,273,136.99 : x - Step 2: Convert to fraction form
691,216,986.49/1,036,826,477.63 = 282,273,136.99/x - Step 3: Cross multiply
691,216,986.49x = 1,036,826,477.63 × 282,273,136.99 - Step 4: Simplify right side
691,216,986.49x = 292,668,262,354,912,192 - Step 5: Solve for x
x = 292,668,262,354,912,192/691,216,986.49 - Step 6: Final answer
x = 423,410,113.00
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Double scale
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Similar ratio
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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.