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Finding the Fourth Proportional to 479,588.37, 661,880.51 and 411,829.66

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Solution

The fourth proportional to 479,588.37, 661,880.51 and 411,829.66 is: 568,366.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,588.37 : 661,880.51 = 411,829.66 : x
  2. Step 2: Convert to fraction form
    479,588.37/661,880.51 = 411,829.66/x
  3. Step 3: Cross multiply
    479,588.37x = 661,880.51 × 411,829.66
  4. Step 4: Simplify right side
    479,588.37x = 272,582,025,393.93
  5. Step 5: Solve for x
    x = 272,582,025,393.93/479,588.37
  6. Step 6: Final answer
    x = 568,366.63

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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.