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Finding the Fourth Proportional to 456,134.30, 629,463.75 and 254,930.30

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Solution

The fourth proportional to 456,134.30, 629,463.75 and 254,930.30 is: 351,802.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,134.30 : 629,463.75 = 254,930.30 : x
  2. Step 2: Convert to fraction form
    456,134.30/629,463.75 = 254,930.30/x
  3. Step 3: Cross multiply
    456,134.30x = 629,463.75 × 254,930.30
  4. Step 4: Simplify right side
    456,134.30x = 160,469,379,479.31
  5. Step 5: Solve for x
    x = 160,469,379,479.31/456,134.30
  6. Step 6: Final answer
    x = 351,802.93

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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.