Finding the Fourth Proportional to 905,444.06, 1,247,931.15 and 663,211.94
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Solution
The fourth proportional to 905,444.06, 1,247,931.15 and 663,211.94 is: 914,073.96
Step by Step Solution
- Step 1: Write the proportion equation
905,444.06 : 1,247,931.15 = 663,211.94 : x - Step 2: Convert to fraction form
905,444.06/1,247,931.15 = 663,211.94/x - Step 3: Cross multiply
905,444.06x = 1,247,931.15 × 663,211.94 - Step 4: Simplify right side
905,444.06x = 827,642,838,977.93 - Step 5: Solve for x
x = 827,642,838,977.93/905,444.06 - Step 6: Final answer
x = 914,073.96
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1.5x scale
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.