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Finding the Fourth Proportional to 489,042.70, 733,564.05 and 423,432.70

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Solution

The fourth proportional to 489,042.70, 733,564.05 and 423,432.70 is: 635,149.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,042.70 : 733,564.05 = 423,432.70 : x
  2. Step 2: Convert to fraction form
    489,042.70/733,564.05 = 423,432.70/x
  3. Step 3: Cross multiply
    489,042.70x = 733,564.05 × 423,432.70
  4. Step 4: Simplify right side
    489,042.70x = 310,615,006,314.44
  5. Step 5: Solve for x
    x = 310,615,006,314.44/489,042.70
  6. Step 6: Final answer
    x = 635,149.05

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