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Finding the Fourth Proportional to 613,372.16, 920,451.90 and 297,656.84

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Solution

The fourth proportional to 613,372.16, 920,451.90 and 297,656.84 is: 446,676.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,372.16 : 920,451.90 = 297,656.84 : x
  2. Step 2: Convert to fraction form
    613,372.16/920,451.90 = 297,656.84/x
  3. Step 3: Cross multiply
    613,372.16x = 920,451.90 × 297,656.84
  4. Step 4: Simplify right side
    613,372.16x = 273,978,799,323.74
  5. Step 5: Solve for x
    x = 273,978,799,323.74/613,372.16
  6. Step 6: Final answer
    x = 446,676.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.