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Finding the Fourth Proportional to 609,358.45, 840,904.33 and 337,420.51

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Solution

The fourth proportional to 609,358.45, 840,904.33 and 337,420.51 is: 465,634.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,358.45 : 840,904.33 = 337,420.51 : x
  2. Step 2: Convert to fraction form
    609,358.45/840,904.33 = 337,420.51/x
  3. Step 3: Cross multiply
    609,358.45x = 840,904.33 × 337,420.51
  4. Step 4: Simplify right side
    609,358.45x = 283,738,366,638.94
  5. Step 5: Solve for x
    x = 283,738,366,638.94/609,358.45
  6. Step 6: Final answer
    x = 465,634.58

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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.