Home / 417,690.11-626,434.76-192,834.56

Finding the Fourth Proportional to 417,690.11, 626,434.76 and 192,834.56

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Solution

The fourth proportional to 417,690.11, 626,434.76 and 192,834.56 is: 289,205.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,690.11 : 626,434.76 = 192,834.56 : x
  2. Step 2: Convert to fraction form
    417,690.11/626,434.76 = 192,834.56/x
  3. Step 3: Cross multiply
    417,690.11x = 626,434.76 × 192,834.56
  4. Step 4: Simplify right side
    417,690.11x = 120,798,271,313.31
  5. Step 5: Solve for x
    x = 120,798,271,313.31/417,690.11
  6. Step 6: Final answer
    x = 289,205.49

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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.