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Finding the Fourth Proportional to 609,138.38, 840,617.61 and 337,210.82

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Solution

The fourth proportional to 609,138.38, 840,617.61 and 337,210.82 is: 465,354.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,138.38 : 840,617.61 = 337,210.82 : x
  2. Step 2: Convert to fraction form
    609,138.38/840,617.61 = 337,210.82/x
  3. Step 3: Cross multiply
    609,138.38x = 840,617.61 × 337,210.82
  4. Step 4: Simplify right side
    609,138.38x = 283,465,353,574.54
  5. Step 5: Solve for x
    x = 283,465,353,574.54/609,138.38
  6. Step 6: Final answer
    x = 465,354.61

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1.5x scale

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.