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Finding the Fourth Proportional to 432,067.80, 648,101.70 and 405,802.20

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Solution

The fourth proportional to 432,067.80, 648,101.70 and 405,802.20 is: 608,703.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,067.80 : 648,101.70 = 405,802.20 : x
  2. Step 2: Convert to fraction form
    432,067.80/648,101.70 = 405,802.20/x
  3. Step 3: Cross multiply
    432,067.80x = 648,101.70 × 405,802.20
  4. Step 4: Simplify right side
    432,067.80x = 263,001,095,683.74
  5. Step 5: Solve for x
    x = 263,001,095,683.74/432,067.80
  6. Step 6: Final answer
    x = 608,703.30

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