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Finding the Fourth Proportional to 662,117.20, 993,586.20 and 346,800.40

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Solution

The fourth proportional to 662,117.20, 993,586.20 and 346,800.40 is: 520,415.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,117.20 : 993,586.20 = 346,800.40 : x
  2. Step 2: Convert to fraction form
    662,117.20/993,586.20 = 346,800.40/x
  3. Step 3: Cross multiply
    662,117.20x = 993,586.20 × 346,800.40
  4. Step 4: Simplify right side
    662,117.20x = 344,576,091,594.48
  5. Step 5: Solve for x
    x = 344,576,091,594.48/662,117.20
  6. Step 6: Final answer
    x = 520,415.56

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