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Finding the Fourth Proportional to 496,520.28, 685,196.10 and 281,701.80

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Solution

The fourth proportional to 496,520.28, 685,196.10 and 281,701.80 is: 388,747.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,520.28 : 685,196.10 = 281,701.80 : x
  2. Step 2: Convert to fraction form
    496,520.28/685,196.10 = 281,701.80/x
  3. Step 3: Cross multiply
    496,520.28x = 685,196.10 × 281,701.80
  4. Step 4: Simplify right side
    496,520.28x = 193,020,974,722.98
  5. Step 5: Solve for x
    x = 193,020,974,722.98/496,520.28
  6. Step 6: Final answer
    x = 388,747.41

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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.