Finding the Fourth Proportional to 3,191,170.77, 4,422,446.12 and 3,130,612.77
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Solution
The fourth proportional to 3,191,170.77, 4,422,446.12 and 3,130,612.77 is: 4,338,522.54
Step by Step Solution
- Step 1: Write the proportion equation
3,191,170.77 : 4,422,446.12 = 3,130,612.77 : x - Step 2: Convert to fraction form
3,191,170.77/4,422,446.12 = 3,130,612.77/x - Step 3: Cross multiply
3,191,170.77x = 4,422,446.12 × 3,130,612.77 - Step 4: Simplify right side
3,191,170.77x = 13,844,966,305,735.48 - Step 5: Solve for x
x = 13,844,966,305,735.48/3,191,170.77 - Step 6: Final answer
x = 4,338,522.54
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Find fourth proportional to 1,595,585.39, 2,211,223.06 and 1,565,306.39
Half scale
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.