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Finding the Fourth Proportional to 582,479.88, 803,134.43 and 398,807.52

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Solution

The fourth proportional to 582,479.88, 803,134.43 and 398,807.52 is: 549,883.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,479.88 : 803,134.43 = 398,807.52 : x
  2. Step 2: Convert to fraction form
    582,479.88/803,134.43 = 398,807.52/x
  3. Step 3: Cross multiply
    582,479.88x = 803,134.43 × 398,807.52
  4. Step 4: Simplify right side
    582,479.88x = 320,296,048,260.88
  5. Step 5: Solve for x
    x = 320,296,048,260.88/582,479.88
  6. Step 6: Final answer
    x = 549,883.45

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