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Finding the Fourth Proportional to 483,775.40, 667,584.78 and 292,777.40

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Solution

The fourth proportional to 483,775.40, 667,584.78 and 292,777.40 is: 404,017.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,775.40 : 667,584.78 = 292,777.40 : x
  2. Step 2: Convert to fraction form
    483,775.40/667,584.78 = 292,777.40/x
  3. Step 3: Cross multiply
    483,775.40x = 667,584.78 × 292,777.40
  4. Step 4: Simplify right side
    483,775.40x = 195,453,736,167.97
  5. Step 5: Solve for x
    x = 195,453,736,167.97/483,775.40
  6. Step 6: Final answer
    x = 404,017.52

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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.