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Finding the Fourth Proportional to 475,907.40, 713,861.10 and 454,912.20

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Solution

The fourth proportional to 475,907.40, 713,861.10 and 454,912.20 is: 682,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,907.40 : 713,861.10 = 454,912.20 : x
  2. Step 2: Convert to fraction form
    475,907.40/713,861.10 = 454,912.20/x
  3. Step 3: Cross multiply
    475,907.40x = 713,861.10 × 454,912.20
  4. Step 4: Simplify right side
    475,907.40x = 324,744,123,495.42
  5. Step 5: Solve for x
    x = 324,744,123,495.42/475,907.40
  6. Step 6: Final answer
    x = 682,368.30

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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.