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Finding the Fourth Proportional to 377,247.78, 520,591.86 and 213,934.23

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Solution

The fourth proportional to 377,247.78, 520,591.86 and 213,934.23 is: 295,223.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,247.78 : 520,591.86 = 213,934.23 : x
  2. Step 2: Convert to fraction form
    377,247.78/520,591.86 = 213,934.23/x
  3. Step 3: Cross multiply
    377,247.78x = 520,591.86 × 213,934.23
  4. Step 4: Simplify right side
    377,247.78x = 111,372,418,713.37
  5. Step 5: Solve for x
    x = 111,372,418,713.37/377,247.78
  6. Step 6: Final answer
    x = 295,223.52

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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.