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Finding the Fourth Proportional to 482,993.28, 666,662.40 and 313,217.28

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Solution

The fourth proportional to 482,993.28, 666,662.40 and 313,217.28 is: 432,325.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,993.28 : 666,662.40 = 313,217.28 : x
  2. Step 2: Convert to fraction form
    482,993.28/666,662.40 = 313,217.28/x
  3. Step 3: Cross multiply
    482,993.28x = 666,662.40 × 313,217.28
  4. Step 4: Simplify right side
    482,993.28x = 208,810,183,606.27
  5. Step 5: Solve for x
    x = 208,810,183,606.27/482,993.28
  6. Step 6: Final answer
    x = 432,325.24

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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.