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Finding the Fourth Proportional to 464,219.61, 640,737.02 and 283,031.45

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Solution

The fourth proportional to 464,219.61, 640,737.02 and 283,031.45 is: 390,652.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,219.61 : 640,737.02 = 283,031.45 : x
  2. Step 2: Convert to fraction form
    464,219.61/640,737.02 = 283,031.45/x
  3. Step 3: Cross multiply
    464,219.61x = 640,737.02 × 283,031.45
  4. Step 4: Simplify right side
    464,219.61x = 181,348,728,546.86
  5. Step 5: Solve for x
    x = 181,348,728,546.86/464,219.61
  6. Step 6: Final answer
    x = 390,652.88

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