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Finding the Fourth Proportional to 275,576.40, 413,364.60 and 186,346.80

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Solution

The fourth proportional to 275,576.40, 413,364.60 and 186,346.80 is: 279,520.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,576.40 : 413,364.60 = 186,346.80 : x
  2. Step 2: Convert to fraction form
    275,576.40/413,364.60 = 186,346.80/x
  3. Step 3: Cross multiply
    275,576.40x = 413,364.60 × 186,346.80
  4. Step 4: Simplify right side
    275,576.40x = 77,029,170,443.28
  5. Step 5: Solve for x
    x = 77,029,170,443.28/275,576.40
  6. Step 6: Final answer
    x = 279,520.20

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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.