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Finding the Fourth Proportional to 496,605.56, 685,331.22 and 281,754.68

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Solution

The fourth proportional to 496,605.56, 685,331.22 and 281,754.68 is: 388,830.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,605.56 : 685,331.22 = 281,754.68 : x
  2. Step 2: Convert to fraction form
    496,605.56/685,331.22 = 281,754.68/x
  3. Step 3: Cross multiply
    496,605.56x = 685,331.22 × 281,754.68
  4. Step 4: Simplify right side
    496,605.56x = 193,095,278,585.11
  5. Step 5: Solve for x
    x = 193,095,278,585.11/496,605.56
  6. Step 6: Final answer
    x = 388,830.28

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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.