Finding the Fourth Proportional to 877,714.57, 1,211,728.17 and 551,368
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Solution
The fourth proportional to 877,714.57, 1,211,728.17 and 551,368 is: 761,190.67
Step by Step Solution
- Step 1: Write the proportion equation
877,714.57 : 1,211,728.17 = 551,368 : x - Step 2: Convert to fraction form
877,714.57/1,211,728.17 = 551,368/x - Step 3: Cross multiply
877,714.57x = 1,211,728.17 × 551,368 - Step 4: Simplify right side
877,714.57x = 668,108,137,636.56 - Step 5: Solve for x
x = 668,108,137,636.56/877,714.57 - Step 6: Final answer
x = 761,190.67
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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.