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Finding the Fourth Proportional to 463,984.16, 640,606.56 and 356,361.92

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Solution

The fourth proportional to 463,984.16, 640,606.56 and 356,361.92 is: 492,016.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,984.16 : 640,606.56 = 356,361.92 : x
  2. Step 2: Convert to fraction form
    463,984.16/640,606.56 = 356,361.92/x
  3. Step 3: Cross multiply
    463,984.16x = 640,606.56 × 356,361.92
  4. Step 4: Simplify right side
    463,984.16x = 228,287,783,686.20
  5. Step 5: Solve for x
    x = 228,287,783,686.20/463,984.16
  6. Step 6: Final answer
    x = 492,016.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.