Finding the Fourth Proportional to 517,718.45, 776,630.69 and 198,139.08
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Solution
The fourth proportional to 517,718.45, 776,630.69 and 198,139.08 is: 297,228.92
Step by Step Solution
- Step 1: Write the proportion equation
517,718.45 : 776,630.69 = 198,139.08 : x - Step 2: Convert to fraction form
517,718.45/776,630.69 = 198,139.08/x - Step 3: Cross multiply
517,718.45x = 776,630.69 × 198,139.08 - Step 4: Simplify right side
517,718.45x = 153,880,893,081.06 - Step 5: Solve for x
x = 153,880,893,081.06/517,718.45 - Step 6: Final answer
x = 297,228.92
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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.