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Finding the Fourth Proportional to 479,345.22, 661,499.94 and 264,493.26

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Solution

The fourth proportional to 479,345.22, 661,499.94 and 264,493.26 is: 365,002.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,345.22 : 661,499.94 = 264,493.26 : x
  2. Step 2: Convert to fraction form
    479,345.22/661,499.94 = 264,493.26/x
  3. Step 3: Cross multiply
    479,345.22x = 661,499.94 × 264,493.26
  4. Step 4: Simplify right side
    479,345.22x = 174,962,275,620.40
  5. Step 5: Solve for x
    x = 174,962,275,620.40/479,345.22
  6. Step 6: Final answer
    x = 365,002.65

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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.