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Finding the Fourth Proportional to 609,047.90, 840,487.68 and 337,134.54

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Solution

The fourth proportional to 609,047.90, 840,487.68 and 337,134.54 is: 465,246.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,047.90 : 840,487.68 = 337,134.54 : x
  2. Step 2: Convert to fraction form
    609,047.90/840,487.68 = 337,134.54/x
  3. Step 3: Cross multiply
    609,047.90x = 840,487.68 × 337,134.54
  4. Step 4: Simplify right side
    609,047.90x = 283,357,427,372.47
  5. Step 5: Solve for x
    x = 283,357,427,372.47/609,047.90
  6. Step 6: Final answer
    x = 465,246.54

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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.