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Finding the Fourth Proportional to 264,480.74, 396,636.84 and 86,946.83

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Solution

The fourth proportional to 264,480.74, 396,636.84 and 86,946.83 is: 130,392.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,480.74 : 396,636.84 = 86,946.83 : x
  2. Step 2: Convert to fraction form
    264,480.74/396,636.84 = 86,946.83/x
  3. Step 3: Cross multiply
    264,480.74x = 396,636.84 × 86,946.83
  4. Step 4: Simplify right side
    264,480.74x = 34,486,313,916.03
  5. Step 5: Solve for x
    x = 34,486,313,916.03/264,480.74
  6. Step 6: Final answer
    x = 130,392.54

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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.