Finding the Fourth Proportional to 418,203.64, 577,102.21 and 236,911.87
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Solution
The fourth proportional to 418,203.64, 577,102.21 and 236,911.87 is: 326,927.72
Step by Step Solution
- Step 1: Write the proportion equation
418,203.64 : 577,102.21 = 236,911.87 : x - Step 2: Convert to fraction form
418,203.64/577,102.21 = 236,911.87/x - Step 3: Cross multiply
418,203.64x = 577,102.21 × 236,911.87 - Step 4: Simplify right side
418,203.64x = 136,722,363,752.23 - Step 5: Solve for x
x = 136,722,363,752.23/418,203.64 - Step 6: Final answer
x = 326,927.72
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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.