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Finding the Fourth Proportional to 288,936.60, 433,404.90 and 194,458.20

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Solution

The fourth proportional to 288,936.60, 433,404.90 and 194,458.20 is: 291,687.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,936.60 : 433,404.90 = 194,458.20 : x
  2. Step 2: Convert to fraction form
    288,936.60/433,404.90 = 194,458.20/x
  3. Step 3: Cross multiply
    288,936.60x = 433,404.90 × 194,458.20
  4. Step 4: Simplify right side
    288,936.60x = 84,279,136,725.18
  5. Step 5: Solve for x
    x = 84,279,136,725.18/288,936.60
  6. Step 6: Final answer
    x = 291,687.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.