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Finding the Fourth Proportional to 291,277.37, 401,755.71 and 194,432.39

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Solution

The fourth proportional to 291,277.37, 401,755.71 and 194,432.39 is: 268,178.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,277.37 : 401,755.71 = 194,432.39 : x
  2. Step 2: Convert to fraction form
    291,277.37/401,755.71 = 194,432.39/x
  3. Step 3: Cross multiply
    291,277.37x = 401,755.71 × 194,432.39
  4. Step 4: Simplify right side
    291,277.37x = 78,114,322,891.45
  5. Step 5: Solve for x
    x = 78,114,322,891.45/291,277.37
  6. Step 6: Final answer
    x = 268,178.48

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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.