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Finding the Fourth Proportional to 354,886.80, 532,330.20 and 319,894.80

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Solution

The fourth proportional to 354,886.80, 532,330.20 and 319,894.80 is: 479,842.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,886.80 : 532,330.20 = 319,894.80 : x
  2. Step 2: Convert to fraction form
    354,886.80/532,330.20 = 319,894.80/x
  3. Step 3: Cross multiply
    354,886.80x = 532,330.20 × 319,894.80
  4. Step 4: Simplify right side
    354,886.80x = 170,289,662,862.96
  5. Step 5: Solve for x
    x = 170,289,662,862.96/354,886.80
  6. Step 6: Final answer
    x = 479,842.20

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