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Finding the Fourth Proportional to 377,270.44, 520,369.57 and 256,201.56

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Solution

The fourth proportional to 377,270.44, 520,369.57 and 256,201.56 is: 353,379.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,270.44 : 520,369.57 = 256,201.56 : x
  2. Step 2: Convert to fraction form
    377,270.44/520,369.57 = 256,201.56/x
  3. Step 3: Cross multiply
    377,270.44x = 520,369.57 × 256,201.56
  4. Step 4: Simplify right side
    377,270.44x = 133,319,495,610.53
  5. Step 5: Solve for x
    x = 133,319,495,610.53/377,270.44
  6. Step 6: Final answer
    x = 353,379.12

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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.