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Finding the Fourth Proportional to 512,164.60, 768,246.90 and 245,860.90

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Solution

The fourth proportional to 512,164.60, 768,246.90 and 245,860.90 is: 368,791.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,164.60 : 768,246.90 = 245,860.90 : x
  2. Step 2: Convert to fraction form
    512,164.60/768,246.90 = 245,860.90/x
  3. Step 3: Cross multiply
    512,164.60x = 768,246.90 × 245,860.90
  4. Step 4: Simplify right side
    512,164.60x = 188,881,874,256.21
  5. Step 5: Solve for x
    x = 188,881,874,256.21/512,164.60
  6. Step 6: Final answer
    x = 368,791.35

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Similar ratio
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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.