Finding the Fourth Proportional to 1,123,344.15, 1,549,836.48 and 639,566.99
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Solution
The fourth proportional to 1,123,344.15, 1,549,836.48 and 639,566.99 is: 882,386.98
Step by Step Solution
- Step 1: Write the proportion equation
1,123,344.15 : 1,549,836.48 = 639,566.99 : x - Step 2: Convert to fraction form
1,123,344.15/1,549,836.48 = 639,566.99/x - Step 3: Cross multiply
1,123,344.15x = 1,549,836.48 × 639,566.99 - Step 4: Simplify right side
1,123,344.15x = 991,224,252,966.88 - Step 5: Solve for x
x = 991,224,252,966.88/1,123,344.15 - Step 6: Final answer
x = 882,386.98
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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.