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Finding the Fourth Proportional to 479,553.86, 661,784.38 and 264,693.98

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Solution

The fourth proportional to 479,553.86, 661,784.38 and 264,693.98 is: 365,277.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,553.86 : 661,784.38 = 264,693.98 : x
  2. Step 2: Convert to fraction form
    479,553.86/661,784.38 = 264,693.98/x
  3. Step 3: Cross multiply
    479,553.86x = 661,784.38 × 264,693.98
  4. Step 4: Simplify right side
    479,553.86x = 175,170,338,714.22
  5. Step 5: Solve for x
    x = 175,170,338,714.22/479,553.86
  6. Step 6: Final answer
    x = 365,277.72

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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.