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Finding the Fourth Proportional to 463,338.83, 639,077.87 and 425,221.49

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Solution

The fourth proportional to 463,338.83, 639,077.87 and 425,221.49 is: 586,503.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,338.83 : 639,077.87 = 425,221.49 : x
  2. Step 2: Convert to fraction form
    463,338.83/639,077.87 = 425,221.49/x
  3. Step 3: Cross multiply
    463,338.83x = 639,077.87 × 425,221.49
  4. Step 4: Simplify right side
    463,338.83x = 271,749,646,768.18
  5. Step 5: Solve for x
    x = 271,749,646,768.18/463,338.83
  6. Step 6: Final answer
    x = 586,503.07

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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.