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Finding the Fourth Proportional to 446,455.32, 669,674.34 and 130,905.24

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Solution

The fourth proportional to 446,455.32, 669,674.34 and 130,905.24 is: 196,355.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,455.32 : 669,674.34 = 130,905.24 : x
  2. Step 2: Convert to fraction form
    446,455.32/669,674.34 = 130,905.24/x
  3. Step 3: Cross multiply
    446,455.32x = 669,674.34 × 130,905.24
  4. Step 4: Simplify right side
    446,455.32x = 87,663,880,199.54
  5. Step 5: Solve for x
    x = 87,663,880,199.54/446,455.32
  6. Step 6: Final answer
    x = 196,355.33

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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.