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Finding the Fourth Proportional to 474,431.67, 654,651.05 and 283,404.51

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Solution

The fourth proportional to 474,431.67, 654,651.05 and 283,404.51 is: 391,059.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,431.67 : 654,651.05 = 283,404.51 : x
  2. Step 2: Convert to fraction form
    474,431.67/654,651.05 = 283,404.51/x
  3. Step 3: Cross multiply
    474,431.67x = 654,651.05 × 283,404.51
  4. Step 4: Simplify right side
    474,431.67x = 185,531,058,629.21
  5. Step 5: Solve for x
    x = 185,531,058,629.21/474,431.67
  6. Step 6: Final answer
    x = 391,059.60

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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.