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Finding the Fourth Proportional to 609,348.10, 840,890.10 and 337,410.15

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Solution

The fourth proportional to 609,348.10, 840,890.10 and 337,410.15 is: 465,620.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,348.10 : 840,890.10 = 337,410.15 : x
  2. Step 2: Convert to fraction form
    609,348.10/840,890.10 = 337,410.15/x
  3. Step 3: Cross multiply
    609,348.10x = 840,890.10 × 337,410.15
  4. Step 4: Simplify right side
    609,348.10x = 283,724,855,720.38
  5. Step 5: Solve for x
    x = 283,724,855,720.38/609,348.10
  6. Step 6: Final answer
    x = 465,620.32

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Double scale
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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.