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Finding the Fourth Proportional to 470,787.65, 649,679.29 and 255,933.13

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Solution

The fourth proportional to 470,787.65, 649,679.29 and 255,933.13 is: 353,183.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,787.65 : 649,679.29 = 255,933.13 : x
  2. Step 2: Convert to fraction form
    470,787.65/649,679.29 = 255,933.13/x
  3. Step 3: Cross multiply
    470,787.65x = 649,679.29 × 255,933.13
  4. Step 4: Simplify right side
    470,787.65x = 166,274,454,185.88
  5. Step 5: Solve for x
    x = 166,274,454,185.88/470,787.65
  6. Step 6: Final answer
    x = 353,183.55

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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.