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Finding the Fourth Proportional to 673,192.78, 929,005.98 and 371,386.78

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Solution

The fourth proportional to 673,192.78, 929,005.98 and 371,386.78 is: 512,513.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,192.78 : 929,005.98 = 371,386.78 : x
  2. Step 2: Convert to fraction form
    673,192.78/929,005.98 = 371,386.78/x
  3. Step 3: Cross multiply
    673,192.78x = 929,005.98 × 371,386.78
  4. Step 4: Simplify right side
    673,192.78x = 345,020,539,512.94
  5. Step 5: Solve for x
    x = 345,020,539,512.94/673,192.78
  6. Step 6: Final answer
    x = 512,513.73

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