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Finding the Fourth Proportional to 516,313.69, 774,169.83 and 200,401.54

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Solution

The fourth proportional to 516,313.69, 774,169.83 and 200,401.54 is: 300,485.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,313.69 : 774,169.83 = 200,401.54 : x
  2. Step 2: Convert to fraction form
    516,313.69/774,169.83 = 200,401.54/x
  3. Step 3: Cross multiply
    516,313.69x = 774,169.83 × 200,401.54
  4. Step 4: Simplify right side
    516,313.69x = 155,144,826,153.54
  5. Step 5: Solve for x
    x = 155,144,826,153.54/516,313.69
  6. Step 6: Final answer
    x = 300,485.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.