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Finding the Fourth Proportional to 474,993.36, 655,466.49 and 260,091.90

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Solution

The fourth proportional to 474,993.36, 655,466.49 and 260,091.90 is: 358,913.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,993.36 : 655,466.49 = 260,091.90 : x
  2. Step 2: Convert to fraction form
    474,993.36/655,466.49 = 260,091.90/x
  3. Step 3: Cross multiply
    474,993.36x = 655,466.49 × 260,091.90
  4. Step 4: Simplify right side
    474,993.36x = 170,481,524,770.43
  5. Step 5: Solve for x
    x = 170,481,524,770.43/474,993.36
  6. Step 6: Final answer
    x = 358,913.49

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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.