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Finding the Fourth Proportional to 512,927.30, 768,776.55 and 263,480.90

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Solution

The fourth proportional to 512,927.30, 768,776.55 and 263,480.90 is: 394,905.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,927.30 : 768,776.55 = 263,480.90 : x
  2. Step 2: Convert to fraction form
    512,927.30/768,776.55 = 263,480.90/x
  3. Step 3: Cross multiply
    512,927.30x = 768,776.55 × 263,480.90
  4. Step 4: Simplify right side
    512,927.30x = 202,557,937,292.90
  5. Step 5: Solve for x
    x = 202,557,937,292.90/512,927.30
  6. Step 6: Final answer
    x = 394,905.74

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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.