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Finding the Fourth Proportional to 470,628.92, 649,467.63 and 255,769.03

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Solution

The fourth proportional to 470,628.92, 649,467.63 and 255,769.03 is: 352,961.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,628.92 : 649,467.63 = 255,769.03 : x
  2. Step 2: Convert to fraction form
    470,628.92/649,467.63 = 255,769.03/x
  3. Step 3: Cross multiply
    470,628.92x = 649,467.63 × 255,769.03
  4. Step 4: Simplify right side
    470,628.92x = 166,113,705,741.50
  5. Step 5: Solve for x
    x = 166,113,705,741.50/470,628.92
  6. Step 6: Final answer
    x = 352,961.11

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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.