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Finding the Fourth Proportional to 617,076.80, 925,615.20 and 196,395.20

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Solution

The fourth proportional to 617,076.80, 925,615.20 and 196,395.20 is: 294,592.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,076.80 : 925,615.20 = 196,395.20 : x
  2. Step 2: Convert to fraction form
    617,076.80/925,615.20 = 196,395.20/x
  3. Step 3: Cross multiply
    617,076.80x = 925,615.20 × 196,395.20
  4. Step 4: Simplify right side
    617,076.80x = 181,786,382,327.04
  5. Step 5: Solve for x
    x = 181,786,382,327.04/617,076.80
  6. Step 6: Final answer
    x = 294,592.80

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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.