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Finding the Fourth Proportional to 311,915.40, 467,873.10 and 292,232.40

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Solution

The fourth proportional to 311,915.40, 467,873.10 and 292,232.40 is: 438,348.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,915.40 : 467,873.10 = 292,232.40 : x
  2. Step 2: Convert to fraction form
    311,915.40/467,873.10 = 292,232.40/x
  3. Step 3: Cross multiply
    311,915.40x = 467,873.10 × 292,232.40
  4. Step 4: Simplify right side
    311,915.40x = 136,727,678,908.44
  5. Step 5: Solve for x
    x = 136,727,678,908.44/311,915.40
  6. Step 6: Final answer
    x = 438,348.60

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