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Finding the Fourth Proportional to 496,767.34, 685,555.47 and 279,014.33

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Solution

The fourth proportional to 496,767.34, 685,555.47 and 279,014.33 is: 385,049.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,767.34 : 685,555.47 = 279,014.33 : x
  2. Step 2: Convert to fraction form
    496,767.34/685,555.47 = 279,014.33/x
  3. Step 3: Cross multiply
    496,767.34x = 685,555.47 × 279,014.33
  4. Step 4: Simplify right side
    496,767.34x = 191,279,795,665.80
  5. Step 5: Solve for x
    x = 191,279,795,665.80/496,767.34
  6. Step 6: Final answer
    x = 385,049.06

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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.