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Finding the Fourth Proportional to 456,416.59, 683,812.97 and 389,174.55

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Solution

The fourth proportional to 456,416.59, 683,812.97 and 389,174.55 is: 583,069.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,416.59 : 683,812.97 = 389,174.55 : x
  2. Step 2: Convert to fraction form
    456,416.59/683,812.97 = 389,174.55/x
  3. Step 3: Cross multiply
    456,416.59x = 683,812.97 × 389,174.55
  4. Step 4: Simplify right side
    456,416.59x = 266,122,604,883.91
  5. Step 5: Solve for x
    x = 266,122,604,883.91/456,416.59
  6. Step 6: Final answer
    x = 583,069.53

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