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Finding the Fourth Proportional to 619,395.52, 854,714.56 and 347,425.60

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Solution

The fourth proportional to 619,395.52, 854,714.56 and 347,425.60 is: 479,418.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,395.52 : 854,714.56 = 347,425.60 : x
  2. Step 2: Convert to fraction form
    619,395.52/854,714.56 = 347,425.60/x
  3. Step 3: Cross multiply
    619,395.52x = 854,714.56 × 347,425.60
  4. Step 4: Simplify right side
    619,395.52x = 296,949,718,836.74
  5. Step 5: Solve for x
    x = 296,949,718,836.74/619,395.52
  6. Step 6: Final answer
    x = 479,418.58

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1.5x scale

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.