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Finding the Fourth Proportional to 463,498.50, 639,627.93 and 251,530.50

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Solution

The fourth proportional to 463,498.50, 639,627.93 and 251,530.50 is: 347,112.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,498.50 : 639,627.93 = 251,530.50 : x
  2. Step 2: Convert to fraction form
    463,498.50/639,627.93 = 251,530.50/x
  3. Step 3: Cross multiply
    463,498.50x = 639,627.93 × 251,530.50
  4. Step 4: Simplify right side
    463,498.50x = 160,885,933,046.87
  5. Step 5: Solve for x
    x = 160,885,933,046.87/463,498.50
  6. Step 6: Final answer
    x = 347,112.09

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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.