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Finding the Fourth Proportional to 587,181.56, 810,314.70 and 318,909.56

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Solution

The fourth proportional to 587,181.56, 810,314.70 and 318,909.56 is: 440,097.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,181.56 : 810,314.70 = 318,909.56 : x
  2. Step 2: Convert to fraction form
    587,181.56/810,314.70 = 318,909.56/x
  3. Step 3: Cross multiply
    587,181.56x = 810,314.70 × 318,909.56
  4. Step 4: Simplify right side
    587,181.56x = 258,417,104,438.53
  5. Step 5: Solve for x
    x = 258,417,104,438.53/587,181.56
  6. Step 6: Final answer
    x = 440,097.45

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