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Finding the Fourth Proportional to 488,649.20, 732,779.40 and 172,943.60

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Solution

The fourth proportional to 488,649.20, 732,779.40 and 172,943.60 is: 259,346.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,649.20 : 732,779.40 = 172,943.60 : x
  2. Step 2: Convert to fraction form
    488,649.20/732,779.40 = 172,943.60/x
  3. Step 3: Cross multiply
    488,649.20x = 732,779.40 × 172,943.60
  4. Step 4: Simplify right side
    488,649.20x = 126,729,507,441.84
  5. Step 5: Solve for x
    x = 126,729,507,441.84/488,649.20
  6. Step 6: Final answer
    x = 259,346.60

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