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Finding the Fourth Proportional to 470,722.74, 649,601.76 and 255,863.34

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Solution

The fourth proportional to 470,722.74, 649,601.76 and 255,863.34 is: 353,093.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,722.74 : 649,601.76 = 255,863.34 : x
  2. Step 2: Convert to fraction form
    470,722.74/649,601.76 = 255,863.34/x
  3. Step 3: Cross multiply
    470,722.74x = 649,601.76 × 255,863.34
  4. Step 4: Simplify right side
    470,722.74x = 166,209,275,983.48
  5. Step 5: Solve for x
    x = 166,209,275,983.48/470,722.74
  6. Step 6: Final answer
    x = 353,093.79

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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.