Finding the Fourth Proportional to 849,434.72, 1,273,263.60 and 316,724
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Solution
The fourth proportional to 849,434.72, 1,273,263.60 and 316,724 is: 474,754.72
Step by Step Solution
- Step 1: Write the proportion equation
849,434.72 : 1,273,263.60 = 316,724 : x - Step 2: Convert to fraction form
849,434.72/1,273,263.60 = 316,724/x - Step 3: Cross multiply
849,434.72x = 1,273,263.60 × 316,724 - Step 4: Simplify right side
849,434.72x = 403,273,140,446.40 - Step 5: Solve for x
x = 403,273,140,446.40/849,434.72 - Step 6: Final answer
x = 474,754.72
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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.