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Finding the Fourth Proportional to 349,442.28, 481,040.31 and 258,627.11

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Solution

The fourth proportional to 349,442.28, 481,040.31 and 258,627.11 is: 356,024.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,442.28 : 481,040.31 = 258,627.11 : x
  2. Step 2: Convert to fraction form
    349,442.28/481,040.31 = 258,627.11/x
  3. Step 3: Cross multiply
    349,442.28x = 481,040.31 × 258,627.11
  4. Step 4: Simplify right side
    349,442.28x = 124,410,062,763.60
  5. Step 5: Solve for x
    x = 124,410,062,763.60/349,442.28
  6. Step 6: Final answer
    x = 356,024.64

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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.