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Finding the Fourth Proportional to 470,379.96, 649,128.87 and 255,524.22

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Solution

The fourth proportional to 470,379.96, 649,128.87 and 255,524.22 is: 352,625.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,379.96 : 649,128.87 = 255,524.22 : x
  2. Step 2: Convert to fraction form
    470,379.96/649,128.87 = 255,524.22/x
  3. Step 3: Cross multiply
    470,379.96x = 649,128.87 × 255,524.22
  4. Step 4: Simplify right side
    470,379.96x = 165,868,148,186.23
  5. Step 5: Solve for x
    x = 165,868,148,186.23/470,379.96
  6. Step 6: Final answer
    x = 352,625.88

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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.