Finding the Fourth Proportional to 1,326,814.22, 1,989,043.19 and 517,011.05
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Solution
The fourth proportional to 1,326,814.22, 1,989,043.19 and 517,011.05 is: 775,057.50
Step by Step Solution
- Step 1: Write the proportion equation
1,326,814.22 : 1,989,043.19 = 517,011.05 : x - Step 2: Convert to fraction form
1,326,814.22/1,989,043.19 = 517,011.05/x - Step 3: Cross multiply
1,326,814.22x = 1,989,043.19 × 517,011.05 - Step 4: Simplify right side
1,326,814.22x = 1,028,357,312,483.59 - Step 5: Solve for x
x = 1,028,357,312,483.59/1,326,814.22 - Step 6: Final answer
x = 775,057.50
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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.