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Finding the Fourth Proportional to 671,051.44, 926,076.54 and 384,626.80

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Solution

The fourth proportional to 671,051.44, 926,076.54 and 384,626.80 is: 530,799.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,051.44 : 926,076.54 = 384,626.80 : x
  2. Step 2: Convert to fraction form
    671,051.44/926,076.54 = 384,626.80/x
  3. Step 3: Cross multiply
    671,051.44x = 926,076.54 × 384,626.80
  4. Step 4: Simplify right side
    671,051.44x = 356,193,856,135.27
  5. Step 5: Solve for x
    x = 356,193,856,135.27/671,051.44
  6. Step 6: Final answer
    x = 530,799.63

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Double scale
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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.