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Finding the Fourth Proportional to 492,476.56, 738,452.28 and 255,580.72

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Solution

The fourth proportional to 492,476.56, 738,452.28 and 255,580.72 is: 383,234.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,476.56 : 738,452.28 = 255,580.72 : x
  2. Step 2: Convert to fraction form
    492,476.56/738,452.28 = 255,580.72/x
  3. Step 3: Cross multiply
    492,476.56x = 738,452.28 × 255,580.72
  4. Step 4: Simplify right side
    492,476.56x = 188,734,165,408.04
  5. Step 5: Solve for x
    x = 188,734,165,408.04/492,476.56
  6. Step 6: Final answer
    x = 383,234.82

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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.