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Finding the Fourth Proportional to 561,791.78, 842,899.87 and 337,308.70

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Solution

The fourth proportional to 561,791.78, 842,899.87 and 337,308.70 is: 506,090.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,791.78 : 842,899.87 = 337,308.70 : x
  2. Step 2: Convert to fraction form
    561,791.78/842,899.87 = 337,308.70/x
  3. Step 3: Cross multiply
    561,791.78x = 842,899.87 × 337,308.70
  4. Step 4: Simplify right side
    561,791.78x = 284,317,458,682.02
  5. Step 5: Solve for x
    x = 284,317,458,682.02/561,791.78
  6. Step 6: Final answer
    x = 506,090.46

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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.