Finding the Fourth Proportional to 1,968,815.53, 2,716,967.26 and 1,063,397.53
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Solution
The fourth proportional to 1,968,815.53, 2,716,967.26 and 1,063,397.53 is: 1,467,489.58
Step by Step Solution
- Step 1: Write the proportion equation
1,968,815.53 : 2,716,967.26 = 1,063,397.53 : x - Step 2: Convert to fraction form
1,968,815.53/2,716,967.26 = 1,063,397.53/x - Step 3: Cross multiply
1,968,815.53x = 2,716,967.26 × 1,063,397.53 - Step 4: Simplify right side
1,968,815.53x = 2,889,216,272,118.71 - Step 5: Solve for x
x = 2,889,216,272,118.71/1,968,815.53 - Step 6: Final answer
x = 1,467,489.58
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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.