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Finding the Fourth Proportional to 465,764.20, 699,491.10 and 407,703.40

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Solution

The fourth proportional to 465,764.20, 699,491.10 and 407,703.40 is: 612,294.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,764.20 : 699,491.10 = 407,703.40 : x
  2. Step 2: Convert to fraction form
    465,764.20/699,491.10 = 407,703.40/x
  3. Step 3: Cross multiply
    465,764.20x = 699,491.10 × 407,703.40
  4. Step 4: Simplify right side
    465,764.20x = 285,184,899,739.74
  5. Step 5: Solve for x
    x = 285,184,899,739.74/465,764.20
  6. Step 6: Final answer
    x = 612,294.59

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