Finding the Fourth Proportional to 935,338.14, 1,290,758.40 and 505,614.42
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Solution
The fourth proportional to 935,338.14, 1,290,758.40 and 505,614.42 is: 697,743.45
Step by Step Solution
- Step 1: Write the proportion equation
935,338.14 : 1,290,758.40 = 505,614.42 : x - Step 2: Convert to fraction form
935,338.14/1,290,758.40 = 505,614.42/x - Step 3: Cross multiply
935,338.14x = 1,290,758.40 × 505,614.42 - Step 4: Simplify right side
935,338.14x = 652,626,059,776.13 - Step 5: Solve for x
x = 652,626,059,776.13/935,338.14 - Step 6: Final answer
x = 697,743.45
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1.5x scale
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.