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Finding the Fourth Proportional to 283,391.80, 424,103.55 and 194,818.30

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Solution

The fourth proportional to 283,391.80, 424,103.55 and 194,818.30 is: 291,550.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,391.80 : 424,103.55 = 194,818.30 : x
  2. Step 2: Convert to fraction form
    283,391.80/424,103.55 = 194,818.30/x
  3. Step 3: Cross multiply
    283,391.80x = 424,103.55 × 194,818.30
  4. Step 4: Simplify right side
    283,391.80x = 82,623,132,634.97
  5. Step 5: Solve for x
    x = 82,623,132,634.97/283,391.80
  6. Step 6: Final answer
    x = 291,550.89

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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.