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Finding the Fourth Proportional to 489,085.20, 733,627.80 and 447,094.80

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Solution

The fourth proportional to 489,085.20, 733,627.80 and 447,094.80 is: 670,642.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,085.20 : 733,627.80 = 447,094.80 : x
  2. Step 2: Convert to fraction form
    489,085.20/733,627.80 = 447,094.80/x
  3. Step 3: Cross multiply
    489,085.20x = 733,627.80 × 447,094.80
  4. Step 4: Simplify right side
    489,085.20x = 328,001,174,515.44
  5. Step 5: Solve for x
    x = 328,001,174,515.44/489,085.20
  6. Step 6: Final answer
    x = 670,642.20

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