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Finding the Fourth Proportional to 368,054.54, 507,915.33 and 206,909.90

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Solution

The fourth proportional to 368,054.54, 507,915.33 and 206,909.90 is: 285,535.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,054.54 : 507,915.33 = 206,909.90 : x
  2. Step 2: Convert to fraction form
    368,054.54/507,915.33 = 206,909.90/x
  3. Step 3: Cross multiply
    368,054.54x = 507,915.33 × 206,909.90
  4. Step 4: Simplify right side
    368,054.54x = 105,092,710,138.77
  5. Step 5: Solve for x
    x = 105,092,710,138.77/368,054.54
  6. Step 6: Final answer
    x = 285,535.70

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