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Finding the Fourth Proportional to 446,082.80, 669,124.20 and 313,113.20

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Solution

The fourth proportional to 446,082.80, 669,124.20 and 313,113.20 is: 469,669.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,082.80 : 669,124.20 = 313,113.20 : x
  2. Step 2: Convert to fraction form
    446,082.80/669,124.20 = 313,113.20/x
  3. Step 3: Cross multiply
    446,082.80x = 669,124.20 × 313,113.20
  4. Step 4: Simplify right side
    446,082.80x = 209,511,619,459.44
  5. Step 5: Solve for x
    x = 209,511,619,459.44/446,082.80
  6. Step 6: Final answer
    x = 469,669.80

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Similar ratio
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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.