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Finding the Fourth Proportional to 478,160.37, 716,702.30 and 208,515.42

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Solution

The fourth proportional to 478,160.37, 716,702.30 and 208,515.42 is: 312,538.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,160.37 : 716,702.30 = 208,515.42 : x
  2. Step 2: Convert to fraction form
    478,160.37/716,702.30 = 208,515.42/x
  3. Step 3: Cross multiply
    478,160.37x = 716,702.30 × 208,515.42
  4. Step 4: Simplify right side
    478,160.37x = 149,443,481,620.76
  5. Step 5: Solve for x
    x = 149,443,481,620.76/478,160.37
  6. Step 6: Final answer
    x = 312,538.41

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