Finding the Fourth Proportional to 1,115,874.16, 1,539,977.88 and 625,889.68
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Solution
The fourth proportional to 1,115,874.16, 1,539,977.88 and 625,889.68 is: 863,767.88
Step by Step Solution
- Step 1: Write the proportion equation
1,115,874.16 : 1,539,977.88 = 625,889.68 : x - Step 2: Convert to fraction form
1,115,874.16/1,539,977.88 = 625,889.68/x - Step 3: Cross multiply
1,115,874.16x = 1,539,977.88 × 625,889.68 - Step 4: Simplify right side
1,115,874.16x = 963,856,262,520.28 - Step 5: Solve for x
x = 963,856,262,520.28/1,115,874.16 - Step 6: Final answer
x = 863,767.88
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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.