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Finding the Fourth Proportional to 479,270.20, 661,392.93 and 264,410.77

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Solution

The fourth proportional to 479,270.20, 661,392.93 and 264,410.77 is: 364,886.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,270.20 : 661,392.93 = 264,410.77 : x
  2. Step 2: Convert to fraction form
    479,270.20/661,392.93 = 264,410.77/x
  3. Step 3: Cross multiply
    479,270.20x = 661,392.93 × 264,410.77
  4. Step 4: Simplify right side
    479,270.20x = 174,879,413,893.86
  5. Step 5: Solve for x
    x = 174,879,413,893.86/479,270.20
  6. Step 6: Final answer
    x = 364,886.89

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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.