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Finding the Fourth Proportional to 307,519.40, 461,279.10 and 295,709.60

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Solution

The fourth proportional to 307,519.40, 461,279.10 and 295,709.60 is: 443,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,519.40 : 461,279.10 = 295,709.60 : x
  2. Step 2: Convert to fraction form
    307,519.40/461,279.10 = 295,709.60/x
  3. Step 3: Cross multiply
    307,519.40x = 461,279.10 × 295,709.60
  4. Step 4: Simplify right side
    307,519.40x = 136,404,658,149.36
  5. Step 5: Solve for x
    x = 136,404,658,149.36/307,519.40
  6. Step 6: Final answer
    x = 443,564.40

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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.