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Finding the Fourth Proportional to 709,264.80, 1,064,674.80 and 443,325.60

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Solution

The fourth proportional to 709,264.80, 1,064,674.80 and 443,325.60 is: 665,474.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,264.80 : 1,064,674.80 = 443,325.60 : x
  2. Step 2: Convert to fraction form
    709,264.80/1,064,674.80 = 443,325.60/x
  3. Step 3: Cross multiply
    709,264.80x = 1,064,674.80 × 443,325.60
  4. Step 4: Simplify right side
    709,264.80x = 471,997,594,514.88
  5. Step 5: Solve for x
    x = 471,997,594,514.88/709,264.80
  6. Step 6: Final answer
    x = 665,474.44

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