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Finding the Fourth Proportional to 470,754.51, 649,633.55 and 255,899.98

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Solution

The fourth proportional to 470,754.51, 649,633.55 and 255,899.98 is: 353,137.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,754.51 : 649,633.55 = 255,899.98 : x
  2. Step 2: Convert to fraction form
    470,754.51/649,633.55 = 255,899.98/x
  3. Step 3: Cross multiply
    470,754.51x = 649,633.55 × 255,899.98
  4. Step 4: Simplify right side
    470,754.51x = 166,241,212,452.33
  5. Step 5: Solve for x
    x = 166,241,212,452.33/470,754.51
  6. Step 6: Final answer
    x = 353,137.80

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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.