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Finding the Fourth Proportional to 515,911.77, 774,162.90 and 200,327.67

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Solution

The fourth proportional to 515,911.77, 774,162.90 and 200,327.67 is: 300,606.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,911.77 : 774,162.90 = 200,327.67 : x
  2. Step 2: Convert to fraction form
    515,911.77/774,162.90 = 200,327.67/x
  3. Step 3: Cross multiply
    515,911.77x = 774,162.90 × 200,327.67
  4. Step 4: Simplify right side
    515,911.77x = 155,086,249,957.44
  5. Step 5: Solve for x
    x = 155,086,249,957.44/515,911.77
  6. Step 6: Final answer
    x = 300,606.15

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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.