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Finding the Fourth Proportional to 476,751.69, 657,756.86 and 269,991.90

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Solution

The fourth proportional to 476,751.69, 657,756.86 and 269,991.90 is: 372,497.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,751.69 : 657,756.86 = 269,991.90 : x
  2. Step 2: Convert to fraction form
    476,751.69/657,756.86 = 269,991.90/x
  3. Step 3: Cross multiply
    476,751.69x = 657,756.86 × 269,991.90
  4. Step 4: Simplify right side
    476,751.69x = 177,589,023,019.48
  5. Step 5: Solve for x
    x = 177,589,023,019.48/476,751.69
  6. Step 6: Final answer
    x = 372,497.94

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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.