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Finding the Fourth Proportional to 446,176.56, 669,215.88 and 130,636.56

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Solution

The fourth proportional to 446,176.56, 669,215.88 and 130,636.56 is: 195,940.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,176.56 : 669,215.88 = 130,636.56 : x
  2. Step 2: Convert to fraction form
    446,176.56/669,215.88 = 130,636.56/x
  3. Step 3: Cross multiply
    446,176.56x = 669,215.88 × 130,636.56
  4. Step 4: Simplify right side
    446,176.56x = 87,424,060,460.57
  5. Step 5: Solve for x
    x = 87,424,060,460.57/446,176.56
  6. Step 6: Final answer
    x = 195,940.50

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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.