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Finding the Fourth Proportional to 549,365,419.60, 824,048,129.40 and 446,053,289.20

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Solution

The fourth proportional to 549,365,419.60, 824,048,129.40 and 446,053,289.20 is: 669,079,933.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,365,419.60 : 824,048,129.40 = 446,053,289.20 : x
  2. Step 2: Convert to fraction form
    549,365,419.60/824,048,129.40 = 446,053,289.20/x
  3. Step 3: Cross multiply
    549,365,419.60x = 824,048,129.40 × 446,053,289.20
  4. Step 4: Simplify right side
    549,365,419.60x = 367,569,378,577,977,216
  5. Step 5: Solve for x
    x = 367,569,378,577,977,216/549,365,419.60
  6. Step 6: Final answer
    x = 669,079,933.80

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