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Finding the Fourth Proportional to 443,419.60, 665,129.40 and 177,221.20

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Solution

The fourth proportional to 443,419.60, 665,129.40 and 177,221.20 is: 265,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,419.60 : 665,129.40 = 177,221.20 : x
  2. Step 2: Convert to fraction form
    443,419.60/665,129.40 = 177,221.20/x
  3. Step 3: Cross multiply
    443,419.60x = 665,129.40 × 177,221.20
  4. Step 4: Simplify right side
    443,419.60x = 117,875,030,423.28
  5. Step 5: Solve for x
    x = 117,875,030,423.28/443,419.60
  6. Step 6: Final answer
    x = 265,831.80

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