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Finding the Fourth Proportional to 479,627.64, 661,886.26 and 264,767.86

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Solution

The fourth proportional to 479,627.64, 661,886.26 and 264,767.86 is: 365,379.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,627.64 : 661,886.26 = 264,767.86 : x
  2. Step 2: Convert to fraction form
    479,627.64/661,886.26 = 264,767.86/x
  3. Step 3: Cross multiply
    479,627.64x = 661,886.26 × 264,767.86
  4. Step 4: Simplify right side
    479,627.64x = 175,246,208,623.60
  5. Step 5: Solve for x
    x = 175,246,208,623.60/479,627.64
  6. Step 6: Final answer
    x = 365,379.71

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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.