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Finding the Fourth Proportional to 264,219.80, 396,329.70 and 86,732.60

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Solution

The fourth proportional to 264,219.80, 396,329.70 and 86,732.60 is: 130,098.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,219.80 : 396,329.70 = 86,732.60 : x
  2. Step 2: Convert to fraction form
    264,219.80/396,329.70 = 86,732.60/x
  3. Step 3: Cross multiply
    264,219.80x = 396,329.70 × 86,732.60
  4. Step 4: Simplify right side
    264,219.80x = 34,374,705,338.22
  5. Step 5: Solve for x
    x = 34,374,705,338.22/264,219.80
  6. Step 6: Final answer
    x = 130,098.90

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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.