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Finding the Fourth Proportional to 446,655.66, 669,606.68 and 193,745.74

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Solution

The fourth proportional to 446,655.66, 669,606.68 and 193,745.74 is: 290,455.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,655.66 : 669,606.68 = 193,745.74 : x
  2. Step 2: Convert to fraction form
    446,655.66/669,606.68 = 193,745.74/x
  3. Step 3: Cross multiply
    446,655.66x = 669,606.68 × 193,745.74
  4. Step 4: Simplify right side
    446,655.66x = 129,733,441,725.54
  5. Step 5: Solve for x
    x = 129,733,441,725.54/446,655.66
  6. Step 6: Final answer
    x = 290,455.16

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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.