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Finding the Fourth Proportional to 421,668.72, 581,909.88 and 230,683.44

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Solution

The fourth proportional to 421,668.72, 581,909.88 and 230,683.44 is: 318,347.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,668.72 : 581,909.88 = 230,683.44 : x
  2. Step 2: Convert to fraction form
    421,668.72/581,909.88 = 230,683.44/x
  3. Step 3: Cross multiply
    421,668.72x = 581,909.88 × 230,683.44
  4. Step 4: Simplify right side
    421,668.72x = 134,236,972,888.39
  5. Step 5: Solve for x
    x = 134,236,972,888.39/421,668.72
  6. Step 6: Final answer
    x = 318,347.00

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