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Finding the Fourth Proportional to 496,190.31, 684,726.62 and 281,349.51

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Solution

The fourth proportional to 496,190.31, 684,726.62 and 281,349.51 is: 388,253.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,190.31 : 684,726.62 = 281,349.51 : x
  2. Step 2: Convert to fraction form
    496,190.31/684,726.62 = 281,349.51/x
  3. Step 3: Cross multiply
    496,190.31x = 684,726.62 × 281,349.51
  4. Step 4: Simplify right side
    496,190.31x = 192,647,497,614.21
  5. Step 5: Solve for x
    x = 192,647,497,614.21/496,190.31
  6. Step 6: Final answer
    x = 388,253.24

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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.