Finding the Fourth Proportional to 1,919,094.12, 2,878,444.14 and 639,563.82
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Solution
The fourth proportional to 1,919,094.12, 2,878,444.14 and 639,563.82 is: 959,280.06
Step by Step Solution
- Step 1: Write the proportion equation
1,919,094.12 : 2,878,444.14 = 639,563.82 : x - Step 2: Convert to fraction form
1,919,094.12/2,878,444.14 = 639,563.82/x - Step 3: Cross multiply
1,919,094.12x = 2,878,444.14 × 639,563.82 - Step 4: Simplify right side
1,919,094.12x = 1,840,948,729,835.01 - Step 5: Solve for x
x = 1,840,948,729,835.01/1,919,094.12 - Step 6: Final answer
x = 959,280.06
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.