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Finding the Fourth Proportional to 330,991.74, 456,745.50 and 187,774.83

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Solution

The fourth proportional to 330,991.74, 456,745.50 and 187,774.83 is: 259,116.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,991.74 : 456,745.50 = 187,774.83 : x
  2. Step 2: Convert to fraction form
    330,991.74/456,745.50 = 187,774.83/x
  3. Step 3: Cross multiply
    330,991.74x = 456,745.50 × 187,774.83
  4. Step 4: Simplify right side
    330,991.74x = 85,765,308,615.77
  5. Step 5: Solve for x
    x = 85,765,308,615.77/330,991.74
  6. Step 6: Final answer
    x = 259,116.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.