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Finding the Fourth Proportional to 492,303.72, 738,455.74 and 255,524.52

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Solution

The fourth proportional to 492,303.72, 738,455.74 and 255,524.52 is: 383,286.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,303.72 : 738,455.74 = 255,524.52 : x
  2. Step 2: Convert to fraction form
    492,303.72/738,455.74 = 255,524.52/x
  3. Step 3: Cross multiply
    492,303.72x = 738,455.74 × 255,524.52
  4. Step 4: Simplify right side
    492,303.72x = 188,693,548,504.75
  5. Step 5: Solve for x
    x = 188,693,548,504.75/492,303.72
  6. Step 6: Final answer
    x = 383,286.86

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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.