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Finding the Fourth Proportional to 515,856.30, 773,918.64 and 196,014.30

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Solution

The fourth proportional to 515,856.30, 773,918.64 and 196,014.30 is: 294,072.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,856.30 : 773,918.64 = 196,014.30 : x
  2. Step 2: Convert to fraction form
    515,856.30/773,918.64 = 196,014.30/x
  3. Step 3: Cross multiply
    515,856.30x = 773,918.64 × 196,014.30
  4. Step 4: Simplify right side
    515,856.30x = 151,699,120,476.55
  5. Step 5: Solve for x
    x = 151,699,120,476.55/515,856.30
  6. Step 6: Final answer
    x = 294,072.44

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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.