Finding the Fourth Proportional to 1,285,390.40, 1,926,242.40 and 945,780.80
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Solution
The fourth proportional to 1,285,390.40, 1,926,242.40 and 945,780.80 is: 1,417,314.99
Step by Step Solution
- Step 1: Write the proportion equation
1,285,390.40 : 1,926,242.40 = 945,780.80 : x - Step 2: Convert to fraction form
1,285,390.40/1,926,242.40 = 945,780.80/x - Step 3: Cross multiply
1,285,390.40x = 1,926,242.40 × 945,780.80 - Step 4: Simplify right side
1,285,390.40x = 1,821,803,078,065.92 - Step 5: Solve for x
x = 1,821,803,078,065.92/1,285,390.40 - Step 6: Final answer
x = 1,417,314.99
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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.