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Finding the Fourth Proportional to 616,807.30, 925,556.55 and 261,760.90

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Solution

The fourth proportional to 616,807.30, 925,556.55 and 261,760.90 is: 392,788.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,807.30 : 925,556.55 = 261,760.90 : x
  2. Step 2: Convert to fraction form
    616,807.30/925,556.55 = 261,760.90/x
  3. Step 3: Cross multiply
    616,807.30x = 925,556.55 × 261,760.90
  4. Step 4: Simplify right side
    616,807.30x = 242,274,515,528.90
  5. Step 5: Solve for x
    x = 242,274,515,528.90/616,807.30
  6. Step 6: Final answer
    x = 392,788.02

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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.