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Finding the Fourth Proportional to 490,738.46, 736,107.98 and 153,805.37

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Solution

The fourth proportional to 490,738.46, 736,107.98 and 153,805.37 is: 230,708.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,738.46 : 736,107.98 = 153,805.37 : x
  2. Step 2: Convert to fraction form
    490,738.46/736,107.98 = 153,805.37/x
  3. Step 3: Cross multiply
    490,738.46x = 736,107.98 × 153,805.37
  4. Step 4: Simplify right side
    490,738.46x = 113,217,355,774.29
  5. Step 5: Solve for x
    x = 113,217,355,774.29/490,738.46
  6. Step 6: Final answer
    x = 230,708.14

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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.