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Finding the Fourth Proportional to 510,052.40, 763,912.20 and 260,442.80

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Solution

The fourth proportional to 510,052.40, 763,912.20 and 260,442.80 is: 390,068.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,052.40 : 763,912.20 = 260,442.80 : x
  2. Step 2: Convert to fraction form
    510,052.40/763,912.20 = 260,442.80/x
  3. Step 3: Cross multiply
    510,052.40x = 763,912.20 × 260,442.80
  4. Step 4: Simplify right side
    510,052.40x = 198,955,432,322.16
  5. Step 5: Solve for x
    x = 198,955,432,322.16/510,052.40
  6. Step 6: Final answer
    x = 390,068.61

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