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Finding the Fourth Proportional to 463,149.38, 639,146.14 and 251,181.38

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Solution

The fourth proportional to 463,149.38, 639,146.14 and 251,181.38 is: 346,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,149.38 : 639,146.14 = 251,181.38 : x
  2. Step 2: Convert to fraction form
    463,149.38/639,146.14 = 251,181.38/x
  3. Step 3: Cross multiply
    463,149.38x = 639,146.14 × 251,181.38
  4. Step 4: Simplify right side
    463,149.38x = 160,541,609,466.87
  5. Step 5: Solve for x
    x = 160,541,609,466.87/463,149.38
  6. Step 6: Final answer
    x = 346,630.30

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1.5x scale

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.