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Finding the Fourth Proportional to 443,079.64, 611,393.88 and 252,096.22

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Solution

The fourth proportional to 443,079.64, 611,393.88 and 252,096.22 is: 347,860.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,079.64 : 611,393.88 = 252,096.22 : x
  2. Step 2: Convert to fraction form
    443,079.64/611,393.88 = 252,096.22/x
  3. Step 3: Cross multiply
    443,079.64x = 611,393.88 × 252,096.22
  4. Step 4: Simplify right side
    443,079.64x = 154,130,086,079.13
  5. Step 5: Solve for x
    x = 154,130,086,079.13/443,079.64
  6. Step 6: Final answer
    x = 347,860.91

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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.