Home / 436,082.20-654,123.30-317,109.40

Finding the Fourth Proportional to 436,082.20, 654,123.30 and 317,109.40

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Solution

The fourth proportional to 436,082.20, 654,123.30 and 317,109.40 is: 475,664.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,082.20 : 654,123.30 = 317,109.40 : x
  2. Step 2: Convert to fraction form
    436,082.20/654,123.30 = 317,109.40/x
  3. Step 3: Cross multiply
    436,082.20x = 654,123.30 × 317,109.40
  4. Step 4: Simplify right side
    436,082.20x = 207,428,647,189.02
  5. Step 5: Solve for x
    x = 207,428,647,189.02/436,082.20
  6. Step 6: Final answer
    x = 475,664.10

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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.