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Finding the Fourth Proportional to 479,212.98, 661,315.77 and 264,349.95

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Solution

The fourth proportional to 479,212.98, 661,315.77 and 264,349.95 is: 364,803.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,212.98 : 661,315.77 = 264,349.95 : x
  2. Step 2: Convert to fraction form
    479,212.98/661,315.77 = 264,349.95/x
  3. Step 3: Cross multiply
    479,212.98x = 661,315.77 × 264,349.95
  4. Step 4: Simplify right side
    479,212.98x = 174,818,792,222.33
  5. Step 5: Solve for x
    x = 174,818,792,222.33/479,212.98
  6. Step 6: Final answer
    x = 364,803.96

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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.