Finding the Fourth Proportional to 838,683.45, 1,157,352.75 and 512,542.09
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Solution
The fourth proportional to 838,683.45, 1,157,352.75 and 512,542.09 is: 707,289.50
Step by Step Solution
- Step 1: Write the proportion equation
838,683.45 : 1,157,352.75 = 512,542.09 : x - Step 2: Convert to fraction form
838,683.45/1,157,352.75 = 512,542.09/x - Step 3: Cross multiply
838,683.45x = 1,157,352.75 × 512,542.09 - Step 4: Simplify right side
838,683.45x = 593,191,997,352.25 - Step 5: Solve for x
x = 593,191,997,352.25/838,683.45 - Step 6: Final answer
x = 707,289.50
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1.5x scale
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.