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Finding the Fourth Proportional to 264,515.90, 396,788.86 and 84,617.14

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Solution

The fourth proportional to 264,515.90, 396,788.86 and 84,617.14 is: 126,930.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,515.90 : 396,788.86 = 84,617.14 : x
  2. Step 2: Convert to fraction form
    264,515.90/396,788.86 = 84,617.14/x
  3. Step 3: Cross multiply
    264,515.90x = 396,788.86 × 84,617.14
  4. Step 4: Simplify right side
    264,515.90x = 33,575,136,321.57
  5. Step 5: Solve for x
    x = 33,575,136,321.57/264,515.90
  6. Step 6: Final answer
    x = 126,930.50

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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.