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Finding the Fourth Proportional to 383,777.80, 529,601.70 and 214,040.68

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Solution

The fourth proportional to 383,777.80, 529,601.70 and 214,040.68 is: 295,369.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,777.80 : 529,601.70 = 214,040.68 : x
  2. Step 2: Convert to fraction form
    383,777.80/529,601.70 = 214,040.68/x
  3. Step 3: Cross multiply
    383,777.80x = 529,601.70 × 214,040.68
  4. Step 4: Simplify right side
    383,777.80x = 113,356,307,997.16
  5. Step 5: Solve for x
    x = 113,356,307,997.16/383,777.80
  6. Step 6: Final answer
    x = 295,369.63

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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.