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Finding the Fourth Proportional to 448,047.60, 672,071.40 and 418,304.40

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Solution

The fourth proportional to 448,047.60, 672,071.40 and 418,304.40 is: 627,456.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,047.60 : 672,071.40 = 418,304.40 : x
  2. Step 2: Convert to fraction form
    448,047.60/672,071.40 = 418,304.40/x
  3. Step 3: Cross multiply
    448,047.60x = 672,071.40 × 418,304.40
  4. Step 4: Simplify right side
    448,047.60x = 281,130,423,734.16
  5. Step 5: Solve for x
    x = 281,130,423,734.16/448,047.60
  6. Step 6: Final answer
    x = 627,456.60

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