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Finding the Fourth Proportional to 616,980.40, 925,793.33 and 252,512.55

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Solution

The fourth proportional to 616,980.40, 925,793.33 and 252,512.55 is: 378,900.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,980.40 : 925,793.33 = 252,512.55 : x
  2. Step 2: Convert to fraction form
    616,980.40/925,793.33 = 252,512.55/x
  3. Step 3: Cross multiply
    616,980.40x = 925,793.33 × 252,512.55
  4. Step 4: Simplify right side
    616,980.40x = 233,774,433,268.73
  5. Step 5: Solve for x
    x = 233,774,433,268.73/616,980.40
  6. Step 6: Final answer
    x = 378,900.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.