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Finding the Fourth Proportional to 609,659.28, 915,079.36 and 294,337.60

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Solution

The fourth proportional to 609,659.28, 915,079.36 and 294,337.60 is: 441,791.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,659.28 : 915,079.36 = 294,337.60 : x
  2. Step 2: Convert to fraction form
    609,659.28/915,079.36 = 294,337.60/x
  3. Step 3: Cross multiply
    609,659.28x = 915,079.36 × 294,337.60
  4. Step 4: Simplify right side
    609,659.28x = 269,342,262,631.94
  5. Step 5: Solve for x
    x = 269,342,262,631.94/609,659.28
  6. Step 6: Final answer
    x = 441,791.46

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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.