Finding the Fourth Proportional to 639,758.66, 881,814.33 and 453,551.99
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Solution
The fourth proportional to 639,758.66, 881,814.33 and 453,551.99 is: 625,155.50
Step by Step Solution
- Step 1: Write the proportion equation
639,758.66 : 881,814.33 = 453,551.99 : x - Step 2: Convert to fraction form
639,758.66/881,814.33 = 453,551.99/x - Step 3: Cross multiply
639,758.66x = 881,814.33 × 453,551.99 - Step 4: Simplify right side
639,758.66x = 399,948,639,772.95 - Step 5: Solve for x
x = 399,948,639,772.95/639,758.66 - Step 6: Final answer
x = 625,155.50
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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.