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Finding the Fourth Proportional to 619,833.60, 928,864.80 and 353,030.40

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Solution

The fourth proportional to 619,833.60, 928,864.80 and 353,030.40 is: 529,041.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,833.60 : 928,864.80 = 353,030.40 : x
  2. Step 2: Convert to fraction form
    619,833.60/928,864.80 = 353,030.40/x
  3. Step 3: Cross multiply
    619,833.60x = 928,864.80 × 353,030.40
  4. Step 4: Simplify right side
    619,833.60x = 327,917,511,889.92
  5. Step 5: Solve for x
    x = 327,917,511,889.92/619,833.60
  6. Step 6: Final answer
    x = 529,041.20

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