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Finding the Fourth Proportional to 291,274.37, 401,751.57 and 194,429.39

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Solution

The fourth proportional to 291,274.37, 401,751.57 and 194,429.39 is: 268,174.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,274.37 : 401,751.57 = 194,429.39 : x
  2. Step 2: Convert to fraction form
    291,274.37/401,751.57 = 194,429.39/x
  3. Step 3: Cross multiply
    291,274.37x = 401,751.57 × 194,429.39
  4. Step 4: Simplify right side
    291,274.37x = 78,112,310,677.88
  5. Step 5: Solve for x
    x = 78,112,310,677.88/291,274.37
  6. Step 6: Final answer
    x = 268,174.34

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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.