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Finding the Fourth Proportional to 546,842.52, 820,789.20 and 266,556.60

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Solution

The fourth proportional to 546,842.52, 820,789.20 and 266,556.60 is: 400,091.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,842.52 : 820,789.20 = 266,556.60 : x
  2. Step 2: Convert to fraction form
    546,842.52/820,789.20 = 266,556.60/x
  3. Step 3: Cross multiply
    546,842.52x = 820,789.20 × 266,556.60
  4. Step 4: Simplify right side
    546,842.52x = 218,786,778,468.72
  5. Step 5: Solve for x
    x = 218,786,778,468.72/546,842.52
  6. Step 6: Final answer
    x = 400,091.01

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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.