Finding the Fourth Proportional to 1,781,490.60, 2,672,235.90 and 519,445.80
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Solution
The fourth proportional to 1,781,490.60, 2,672,235.90 and 519,445.80 is: 779,168.70
Step by Step Solution
- Step 1: Write the proportion equation
1,781,490.60 : 2,672,235.90 = 519,445.80 : x - Step 2: Convert to fraction form
1,781,490.60/2,672,235.90 = 519,445.80/x - Step 3: Cross multiply
1,781,490.60x = 2,672,235.90 × 519,445.80 - Step 4: Simplify right side
1,781,490.60x = 1,388,081,714,864.22 - Step 5: Solve for x
x = 1,388,081,714,864.22/1,781,490.60 - Step 6: Final answer
x = 779,168.70
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1.5x scale
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.