Finding the Fourth Proportional to 1,919,344.07, 2,878,703.17 and 639,962.14
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Solution
The fourth proportional to 1,919,344.07, 2,878,703.17 and 639,962.14 is: 959,838.87
Step by Step Solution
- Step 1: Write the proportion equation
1,919,344.07 : 2,878,703.17 = 639,962.14 : x - Step 2: Convert to fraction form
1,919,344.07/2,878,703.17 = 639,962.14/x - Step 3: Cross multiply
1,919,344.07x = 2,878,703.17 × 639,962.14 - Step 4: Simplify right side
1,919,344.07x = 1,842,261,039,498.08 - Step 5: Solve for x
x = 1,842,261,039,498.08/1,919,344.07 - Step 6: Final answer
x = 959,838.87
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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.