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Finding the Fourth Proportional to 479,321.86, 661,466.28 and 264,461.80

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Solution

The fourth proportional to 479,321.86, 661,466.28 and 264,461.80 is: 364,958.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,321.86 : 661,466.28 = 264,461.80 : x
  2. Step 2: Convert to fraction form
    479,321.86/661,466.28 = 264,461.80/x
  3. Step 3: Cross multiply
    479,321.86x = 661,466.28 × 264,461.80
  4. Step 4: Simplify right side
    479,321.86x = 174,932,563,048.10
  5. Step 5: Solve for x
    x = 174,932,563,048.10/479,321.86
  6. Step 6: Final answer
    x = 364,958.45

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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.