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Finding the Fourth Proportional to 619,874.52, 855,439.47 and 347,962.02

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Solution

The fourth proportional to 619,874.52, 855,439.47 and 347,962.02 is: 480,194.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,874.52 : 855,439.47 = 347,962.02 : x
  2. Step 2: Convert to fraction form
    619,874.52/855,439.47 = 347,962.02/x
  3. Step 3: Cross multiply
    619,874.52x = 855,439.47 × 347,962.02
  4. Step 4: Simplify right side
    619,874.52x = 297,660,445,968.93
  5. Step 5: Solve for x
    x = 297,660,445,968.93/619,874.52
  6. Step 6: Final answer
    x = 480,194.68

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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.