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Finding the Fourth Proportional to 479,587.37, 661,879.13 and 411,828.66

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Solution

The fourth proportional to 479,587.37, 661,879.13 and 411,828.66 is: 568,365.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,587.37 : 661,879.13 = 411,828.66 : x
  2. Step 2: Convert to fraction form
    479,587.37/661,879.13 = 411,828.66/x
  3. Step 3: Cross multiply
    479,587.37x = 661,879.13 × 411,828.66
  4. Step 4: Simplify right side
    479,587.37x = 272,580,793,130.72
  5. Step 5: Solve for x
    x = 272,580,793,130.72/479,587.37
  6. Step 6: Final answer
    x = 568,365.25

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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.