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Finding the Fourth Proportional to 609,615.78, 841,276.53 and 337,687.85

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Solution

The fourth proportional to 609,615.78, 841,276.53 and 337,687.85 is: 466,012.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,615.78 : 841,276.53 = 337,687.85 : x
  2. Step 2: Convert to fraction form
    609,615.78/841,276.53 = 337,687.85/x
  3. Step 3: Cross multiply
    609,615.78x = 841,276.53 × 337,687.85
  4. Step 4: Simplify right side
    609,615.78x = 284,088,858,464.78
  5. Step 5: Solve for x
    x = 284,088,858,464.78/609,615.78
  6. Step 6: Final answer
    x = 466,012.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.