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Finding the Fourth Proportional to 541,778.90, 747,660.38 and 326,877.44

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Solution

The fourth proportional to 541,778.90, 747,660.38 and 326,877.44 is: 451,094.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,778.90 : 747,660.38 = 326,877.44 : x
  2. Step 2: Convert to fraction form
    541,778.90/747,660.38 = 326,877.44/x
  3. Step 3: Cross multiply
    541,778.90x = 747,660.38 × 326,877.44
  4. Step 4: Simplify right side
    541,778.90x = 244,393,311,003.83
  5. Step 5: Solve for x
    x = 244,393,311,003.83/541,778.90
  6. Step 6: Final answer
    x = 451,094.18

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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.