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Finding the Fourth Proportional to 263,259.60, 394,889.40 and 130,160.40

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Solution

The fourth proportional to 263,259.60, 394,889.40 and 130,160.40 is: 195,240.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,259.60 : 394,889.40 = 130,160.40 : x
  2. Step 2: Convert to fraction form
    263,259.60/394,889.40 = 130,160.40/x
  3. Step 3: Cross multiply
    263,259.60x = 394,889.40 × 130,160.40
  4. Step 4: Simplify right side
    263,259.60x = 51,398,962,259.76
  5. Step 5: Solve for x
    x = 51,398,962,259.76/263,259.60
  6. Step 6: Final answer
    x = 195,240.60

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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.