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Finding the Fourth Proportional to 443,418.40, 665,062.80 and 127,842.40

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Solution

The fourth proportional to 443,418.40, 665,062.80 and 127,842.40 is: 191,744.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,418.40 : 665,062.80 = 127,842.40 : x
  2. Step 2: Convert to fraction form
    443,418.40/665,062.80 = 127,842.40/x
  3. Step 3: Cross multiply
    443,418.40x = 665,062.80 × 127,842.40
  4. Step 4: Simplify right side
    443,418.40x = 85,023,224,502.72
  5. Step 5: Solve for x
    x = 85,023,224,502.72/443,418.40
  6. Step 6: Final answer
    x = 191,744.92

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