Finding the Fourth Proportional to 1,189,643.88, 1,641,599.46 and 706,126.44
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Solution
The fourth proportional to 1,189,643.88, 1,641,599.46 and 706,126.44 is: 974,389.73
Step by Step Solution
- Step 1: Write the proportion equation
1,189,643.88 : 1,641,599.46 = 706,126.44 : x - Step 2: Convert to fraction form
1,189,643.88/1,641,599.46 = 706,126.44/x - Step 3: Cross multiply
1,189,643.88x = 1,641,599.46 × 706,126.44 - Step 4: Simplify right side
1,189,643.88x = 1,159,176,782,595.72 - Step 5: Solve for x
x = 1,159,176,782,595.72/1,189,643.88 - Step 6: Final answer
x = 974,389.73
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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.