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Finding the Fourth Proportional to 611,917.80, 916,980.30 and 548,737.80

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Solution

The fourth proportional to 611,917.80, 916,980.30 and 548,737.80 is: 822,302.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,917.80 : 916,980.30 = 548,737.80 : x
  2. Step 2: Convert to fraction form
    611,917.80/916,980.30 = 548,737.80/x
  3. Step 3: Cross multiply
    611,917.80x = 916,980.30 × 548,737.80
  4. Step 4: Simplify right side
    611,917.80x = 503,181,752,465.34
  5. Step 5: Solve for x
    x = 503,181,752,465.34/611,917.80
  6. Step 6: Final answer
    x = 822,302.85

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