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Finding the Fourth Proportional to 638,791.38, 957,059.55 and 569,288.52

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Solution

The fourth proportional to 638,791.38, 957,059.55 and 569,288.52 is: 852,927.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,791.38 : 957,059.55 = 569,288.52 : x
  2. Step 2: Convert to fraction form
    638,791.38/957,059.55 = 569,288.52/x
  3. Step 3: Cross multiply
    638,791.38x = 957,059.55 × 569,288.52
  4. Step 4: Simplify right side
    638,791.38x = 544,843,014,771.37
  5. Step 5: Solve for x
    x = 544,843,014,771.37/638,791.38
  6. Step 6: Final answer
    x = 852,927.94

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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.