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Finding the Fourth Proportional to 617,064.60, 925,558.02 and 196,642.20

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Solution

The fourth proportional to 617,064.60, 925,558.02 and 196,642.20 is: 294,950.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,064.60 : 925,558.02 = 196,642.20 : x
  2. Step 2: Convert to fraction form
    617,064.60/925,558.02 = 196,642.20/x
  3. Step 3: Cross multiply
    617,064.60x = 925,558.02 × 196,642.20
  4. Step 4: Simplify right side
    617,064.60x = 182,003,765,280.44
  5. Step 5: Solve for x
    x = 182,003,765,280.44/617,064.60
  6. Step 6: Final answer
    x = 294,950.91

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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.