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Finding the Fourth Proportional to 609,086.15, 840,528.70 and 337,148.20

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Solution

The fourth proportional to 609,086.15, 840,528.70 and 337,148.20 is: 465,258.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,086.15 : 840,528.70 = 337,148.20 : x
  2. Step 2: Convert to fraction form
    609,086.15/840,528.70 = 337,148.20/x
  3. Step 3: Cross multiply
    609,086.15x = 840,528.70 × 337,148.20
  4. Step 4: Simplify right side
    609,086.15x = 283,382,738,461.13
  5. Step 5: Solve for x
    x = 283,382,738,461.13/609,086.15
  6. Step 6: Final answer
    x = 465,258.88

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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.