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Finding the Fourth Proportional to 479,374.57, 661,536.13 and 264,514.47

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Solution

The fourth proportional to 479,374.57, 661,536.13 and 264,514.47 is: 365,029.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,374.57 : 661,536.13 = 264,514.47 : x
  2. Step 2: Convert to fraction form
    479,374.57/661,536.13 = 264,514.47/x
  3. Step 3: Cross multiply
    479,374.57x = 661,536.13 × 264,514.47
  4. Step 4: Simplify right side
    479,374.57x = 174,985,878,812.80
  5. Step 5: Solve for x
    x = 174,985,878,812.80/479,374.57
  6. Step 6: Final answer
    x = 365,029.54

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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.