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Finding the Fourth Proportional to 619,073.28, 928,872.30 and 338,262.48

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Solution

The fourth proportional to 619,073.28, 928,872.30 and 338,262.48 is: 507,537.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,073.28 : 928,872.30 = 338,262.48 : x
  2. Step 2: Convert to fraction form
    619,073.28/928,872.30 = 338,262.48/x
  3. Step 3: Cross multiply
    619,073.28x = 928,872.30 × 338,262.48
  4. Step 4: Simplify right side
    619,073.28x = 314,202,647,801.30
  5. Step 5: Solve for x
    x = 314,202,647,801.30/619,073.28
  6. Step 6: Final answer
    x = 507,537.08

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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.