Finding the Fourth Proportional to 3,994,974.97, 5,513,065.65 and 2,159,427.24
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Solution
The fourth proportional to 3,994,974.97, 5,513,065.65 and 2,159,427.24 is: 2,980,009.70
Step by Step Solution
- Step 1: Write the proportion equation
3,994,974.97 : 5,513,065.65 = 2,159,427.24 : x - Step 2: Convert to fraction form
3,994,974.97/5,513,065.65 = 2,159,427.24/x - Step 3: Cross multiply
3,994,974.97x = 5,513,065.65 × 2,159,427.24 - Step 4: Simplify right side
3,994,974.97x = 11,905,064,140,518.31 - Step 5: Solve for x
x = 11,905,064,140,518.31/3,994,974.97 - Step 6: Final answer
x = 2,980,009.70
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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.