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Finding the Fourth Proportional to 605,240.78, 835,234.76 and 347,127.68

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Solution

The fourth proportional to 605,240.78, 835,234.76 and 347,127.68 is: 479,037.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,240.78 : 835,234.76 = 347,127.68 : x
  2. Step 2: Convert to fraction form
    605,240.78/835,234.76 = 347,127.68/x
  3. Step 3: Cross multiply
    605,240.78x = 835,234.76 × 347,127.68
  4. Step 4: Simplify right side
    605,240.78x = 289,933,107,450.06
  5. Step 5: Solve for x
    x = 289,933,107,450.06/605,240.78
  6. Step 6: Final answer
    x = 479,037.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.