Finding the Fourth Proportional to 686,197.18, 944,994.63 and 617,630.14
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Solution
The fourth proportional to 686,197.18, 944,994.63 and 617,630.14 is: 850,567.71
Step by Step Solution
- Step 1: Write the proportion equation
686,197.18 : 944,994.63 = 617,630.14 : x - Step 2: Convert to fraction form
686,197.18/944,994.63 = 617,630.14/x - Step 3: Cross multiply
686,197.18x = 944,994.63 × 617,630.14 - Step 4: Simplify right side
686,197.18x = 583,657,165,626.15 - Step 5: Solve for x
x = 583,657,165,626.15/686,197.18 - Step 6: Final answer
x = 850,567.71
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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.