Finding the Fourth Proportional to 944,366,357.80, 1,415,803,149.57 and 471,422,674.66
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Solution
The fourth proportional to 944,366,357.80, 1,415,803,149.57 and 471,422,674.66 is: 706,761,419.49
Step by Step Solution
- Step 1: Write the proportion equation
944,366,357.80 : 1,415,803,149.57 = 471,422,674.66 : x - Step 2: Convert to fraction form
944,366,357.80/1,415,803,149.57 = 471,422,674.66/x - Step 3: Cross multiply
944,366,357.80x = 1,415,803,149.57 × 471,422,674.66 - Step 4: Simplify right side
944,366,357.80x = 667,441,707,559,295,104 - Step 5: Solve for x
x = 667,441,707,559,295,104/944,366,357.80 - Step 6: Final answer
x = 706,761,419.49
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Double scale
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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.