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Finding the Fourth Proportional to 468,958.90, 647,163.86 and 254,098.90

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Solution

The fourth proportional to 468,958.90, 647,163.86 and 254,098.90 is: 350,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,958.90 : 647,163.86 = 254,098.90 : x
  2. Step 2: Convert to fraction form
    468,958.90/647,163.86 = 254,098.90/x
  3. Step 3: Cross multiply
    468,958.90x = 647,163.86 × 254,098.90
  4. Step 4: Simplify right side
    468,958.90x = 164,443,624,945.75
  5. Step 5: Solve for x
    x = 164,443,624,945.75/468,958.90
  6. Step 6: Final answer
    x = 350,656.80

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1.5x scale

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.