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Finding the Fourth Proportional to 264,444.40, 396,626.10 and 86,951.80

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Solution

The fourth proportional to 264,444.40, 396,626.10 and 86,951.80 is: 130,414.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,444.40 : 396,626.10 = 86,951.80 : x
  2. Step 2: Convert to fraction form
    264,444.40/396,626.10 = 86,951.80/x
  3. Step 3: Cross multiply
    264,444.40x = 396,626.10 × 86,951.80
  4. Step 4: Simplify right side
    264,444.40x = 34,487,353,321.98
  5. Step 5: Solve for x
    x = 34,487,353,321.98/264,444.40
  6. Step 6: Final answer
    x = 130,414.38

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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.